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Question 3501Question →

A nurse is evaluating the arterial blood gas (ABG) results for a client who is admitted to the medical-surgical unit with a diagnosis of diabetic ketoacidosis. The laboratory report shows a pH of 7.287.28, a PaCO2\text{PaCO}_2 of 38 mm Hg38\text{ mm Hg}, and an HCO3−\text{HCO}_3^- of 15 mEq/L15\text{ mEq/L}. Based on these values, which of the following acid-base imbalances is this client experiencing?

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Answer: Metabolic acidosis

Answer

The correct answer is metabolic acidosis.
The client's pH is below the normal range of 7.357.35 to 7.457.45, indicating acidosis. The HCO3−\text{HCO}_3^- is below the normal range of 2222 to 26 mEq/L26\text{ mEq/L}, pointing to a metabolic origin. The PaCO2\text{PaCO}_2 is within the normal range of 3535 to 45 mm Hg45\text{ mm Hg}, demonstrating that there is no respiratory compensation yet. Therefore, this represents uncompensated metabolic acidosis, a classic finding in diabetic ketoacidosis.

Step-by-Step Solution

1
Analyze the pH value to determine if the primary state is acidosis or alkalosis.
The pH is 7.287.28, which is less than the normal minimum of 7.357.35, indicating acidemia (acidosis).
Determining the overall acid-base status (pH) is always the first step in ABG interpretation.
2
Evaluate the PaCO2\text{PaCO}_2 value to check for a respiratory cause.
The PaCO2\text{PaCO}_2 is 38 mm Hg38\text{ mm Hg}, which falls within the normal range of 3535 to 45 mm Hg45\text{ mm Hg}.
The PaCO2\text{PaCO}_2 indicates the respiratory component of the acid-base balance.
3
Assess the HCO3−\text{HCO}_3^- value to check for a metabolic cause.
The HCO3−\text{HCO}_3^- is 15 mEq/L15\text{ mEq/L}, which is significantly lower than the normal range of 2222 to 26 mEq/L26\text{ mEq/L}.
The HCO3−\text{HCO}_3^- represents the metabolic component of the acid-base balance.
4
Synthesize the findings to determine the primary imbalance and compensation status.
Since the pH indicates acidosis and the HCO3−\text{HCO}_3^- is low (which causes acidosis), the primary imbalance is metabolic acidosis. The normal PaCO2\text{PaCO}_2 indicates the condition is uncompensated.
Matching the abnormal parameter to the pH state identifies the origin of the imbalance.

Key Concept

Interpretation of uncompensated metabolic acidosis using arterial blood gas (ABG) values.
Question 3502Question →

A nurse is caring for a client who has just arrived at the emergency department with diabetic ketoacidosis (DKA). The client is lethargic, displays deep, rapid respirations, and has a blood glucose level of 650650 mg/dL (36.136.1 mmol/L). Arrange the following collaborative and nursing actions in the correct priority sequence.

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Answer

The correct priority order is to first establish intravenous access, followed immediately by fluid resuscitation with isotonic saline. Next, the nurse must verify the serum potassium level before initiating a continuous intravenous infusion of regular insulin. Finally, the nurse adds dextrose to the intravenous fluids when the blood glucose drops to 250250 mg/dL (13.913.9 mmol/L).
The correct sequence for managing diabetic ketoacidosis (DKA) prioritizes reversing hypovolemia and preventing shock, followed by safely correcting metabolic abnormalities. Establishing intravenous access and administering isotonic fluids is the most critical first step to restore tissue perfusion. Next, it is essential to check potassium levels, because insulin therapy drives potassium into the cells. Administering insulin without knowing the potassium level risks lethal hypokalemia. Once potassium is confirmed safe, an insulin infusion is started to stop ketogenesis. Finally, adding dextrose when blood glucose reaches 250250 mg/dL (13.913.9 mmol/L) prevents life-threatening hypoglycemia and cerebral edema.

Step-by-Step Solution

1
Establish intravenous access.
Provides a reliable route for emergency fluids and medications.
Vascular access is the prerequisite for treating severe dehydration and administering intravenous insulin.
2
Infuse 0.9%0.9\% sodium chloride rapidly.
Restores intravascular volume and organ perfusion.
Severe dehydration and hypovolemia are immediately life-threatening in DKA and must be addressed before correcting the metabolic abnormalities.
3
Verify the serum potassium level.
Ensures potassium is at a safe level to receive insulin.
Insulin shifts potassium from the extracellular space to the intracellular space, which can cause severe cardiac dysrhythmias if baseline potassium is already low.
4
Start a continuous regular insulin infusion.
Decreases blood glucose levels and stops ketone production.
Insulin directly treats the underlying metabolic acidosis and severe hyperglycemia of DKA.
5
Add dextrose to intravenous fluids when glucose reaches 250250 mg/dL (13.913.9 mmol/L).
Prevents hypoglycemia and fluid shifts.
Rapid drops in blood glucose can lead to fluid shifting into the brain, causing cerebral edema.

Key Concept

The primary management of diabetic ketoacidosis focuses on fluid volume replacement first, followed by careful monitoring of potassium levels before initiating insulin therapy.
Question 3503Question →

A nurse manager is coordinating the on-site medical response following a large residential building collapse. While rapidly assessing the victims on the perimeter, the nurse must determine treatment priorities using standard mass casualty triage guidelines. Which individual meets the criteria for a delayed (yellow) triage tag?

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Answer: An older adult sitting on the ground with a suspected femur fracture, a respiratory rate of 22 breaths/min, a palpable radial pulse, and who is answering questions appropriately.

Answer

The client who is unable to walk due to a leg injury but has normal respirations, intact perfusion, and a normal mental status is classified as a delayed (yellow) priority.
In mass casualty triage, a delayed (yellow) tag is assigned to clients who have significant injuries preventing them from walking, but who maintain normal respiratory function (under 30 breaths per minute), adequate perfusion (palpable radial pulse or capillary refill under 2 seconds), and intact mental status (ability to follow simple commands). This client's suspected femur fracture requires definitive care but is not immediately life-threatening.

Step-by-Step Solution

1
Assess the client's ability to walk to rule out minimal priority.
The client with the suspected femur fracture is sitting on the ground and unable to walk, which means they are not a green tag.
In disaster triage, any client who can walk away from the scene is immediately designated as walking wounded (green tag), regardless of minor injuries.
2
Evaluate respiratory rate, perfusion, and mental status.
The client has a normal respiratory rate (22 breaths/min), adequate perfusion (palpable radial pulse), and an intact mental status (answering questions appropriately).
A yellow tag is assigned to clients who are not ambulatory but do not have any immediate life-threatening abnormalities in their airway, breathing, circulation, or neurological status.

Key Concept

Mass Casualty Incident (MCI) Triage Principles
Question 3504Question →

A client receiving a packed red blood cell (PRBC) transfusion reports acute lower back pain and sudden shortness of breath. The nurse notes a rapid heart rate and a drop in blood pressure. Arrange the following immediate nursing actions in the correct chronological sequence to manage this severe physiological complication.

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Answer

The sequence requires stopping the source of harm, maintaining access safely, assessing the client, communicating with the provider, and finally securing the equipment for analysis.
In any acute physiological crisis, the fundamental principle of risk reduction is to immediately remove the offending agent. Therefore, stopping the transfusion is step one. Step two involves maintaining an open intravenous line with uncontaminated tubing and normal saline, which is vital for managing impending shock. Step three requires a rapid assessment to gather objective data. Step four is communicating this data to the healthcare provider to receive emergency prescriptions. The final step involves the administrative protocol of sending the equipment to the laboratory for diagnostic analysis.

Step-by-Step Solution

1
Stop the blood transfusion.
The flow of the potentially incompatible blood product into the client's circulatory system is halted.
Continuing the infusion, even for a few seconds, introduces more antigens causing the acute hemolytic reaction, exacerbating the complication.
2
Infuse normal saline through new intravenous tubing.
Intravenous access is maintained without introducing residual blood.
Using the existing tubing would flush remaining incompatible blood into the client. A new line ensures safe delivery of emergency fluids to support blood pressure and renal perfusion.
3
Obtain vital signs and assess cardiopulmonary status.
Objective data regarding the severity of the shock or respiratory distress is gathered.
The nurse needs a baseline assessment of the reaction's severity to effectively report the client's condition to the healthcare provider.
4
Notify the healthcare provider and the blood bank.
The medical team is alerted and further emergency orders are obtained.
The provider will prescribe medications (such as antihistamines, corticosteroids, or vasopressors) based on the nurse's assessment.
5
Send the blood bag and tubing to the blood bank.
The product is transported for laboratory investigation.
Cross-matching and bacterial cultures on the remaining blood determine the specific type of reaction, guiding long-term management.

Key Concept

Management of Acute Transfusion Reactions
Question 3505Question →

A nurse is caring for a client with a spinal cord injury at the T4 level. The client suddenly reports a severe, pounding headache, and the nurse notes profuse diaphoresis and a blood pressure of 210/110 mm Hg. Arrange the following nursing interventions in the correct order of priority.

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Answer

The correct sequence of actions is to first elevate the head of the bed, then loosen restrictive clothing, followed by assessing for the underlying internal trigger (bladder or bowel), and finally administering antihypertensive medications if the symptoms do not resolve.
In autonomic dysreflexia, the immediate threat to life is severe hypertension, which can cause a stroke. Elevating the head of the bed uses gravity to induce orthostatic hypotension. Next, removing immediate surface triggers like tight clothing prevents further stimulation. Then, the nurse must assess for and resolve the most common internal triggers, such as bladder or bowel distention. Only if these interventions fail should antihypertensive medications be administered.

Step-by-Step Solution

1
Elevate the head of the bed to a high Fowler's position.
Induces orthostatic hypotension.
This is the most rapid and non-invasive way to immediately decrease the client's critically high blood pressure and reduce the risk of a cerebrovascular accident.
2
Loosen any restrictive clothing or devices.
Removes surface sensory triggers.
Tight clothing or devices can act as a noxious stimulus below the level of injury, perpetuating the abnormal sympathetic surge.
3
Assess the bladder and bowel for distention or impaction.
Identifies the primary cause of the episode.
A distended bladder or impacted bowel is the most frequent trigger for autonomic dysreflexia. Resolving this stimulus is required to stop the sympathetic response.
4
Administer a prescribed rapidly acting antihypertensive medication.
Pharmacologically lowers blood pressure.
Medications are indicated if conservative measures, such as positioning and removing triggers, fail to resolve the hypertensive crisis.

Key Concept

Autonomic dysreflexia is a medical emergency characterized by sudden, severe hypertension. Priority management involves immediate positioning to lower blood pressure, followed by identifying and eliminating the triggering noxious stimulus.
Question 3506Question →

A nurse is caring for a client who was placed in balanced suspension skeletal traction for a right femur fracture 24 hours ago. The client reports severe lower back discomfort and requests assistance with repositioning. Which of the following is the most appropriate action by the nurse?

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Answer: Instruct the client to grasp the overhead trapeze bar and lift the upper torso off the mattress to allow for back care.

Answer

Instruct the client to grasp the overhead trapeze bar and lift the upper torso off the mattress to allow for back care.
When a client is in balanced suspension skeletal traction, maintaining the continuous line of pull is critical for fracture alignment and healing. Using an overhead trapeze allows the client to safely lift their upper torso off the bed in a straight vertical motion. This action effectively relieves pressure on the back and sacrum, allows the nurse to provide skin care or change linens, and crucially maintains the required alignment of the affected leg without disrupting the therapeutic traction force.

Step-by-Step Solution

1
Analyze the client's prescribed therapy (balanced suspension skeletal traction) and its physiological constraints.
The client must remain in a supine position to maintain a continuous, proper line of pull on the fractured femur.
Altering the position side-to-side or drastically changing the bed angle disrupts the traction mechanics and can cause injury.
2
Evaluate the proposed interventions for both safety and effectiveness in providing basic comfort.
Interventions that involve removing weights, delegating complex positioning to UAP, or severe bed elevation are unsafe or contraindicated.
These actions can cause severe muscle spasms, bone misalignment, or represent improper delegation of care.
3
Identify the intervention that promotes comfort without compromising the traction setup.
Using the overhead trapeze is the safest and most effective choice.
It allows the client to lift their upper body straight up, relieving pressure on the back and sacrum while maintaining the correct alignment of the lower extremity.

Key Concept

Mobility and positioning principles for clients in skeletal traction
Question 3507Question →

A healthcare team is managing the recovery of a 60-year-old client who underwent a right total pneumonectomy yesterday for bronchogenic carcinoma. The client's current continuous intravenous (IV) infusion is 0.9% sodium chloride running at 125 mL/hr. During the morning assessment, the nurse records the following clinical parameters:

- Vital Signs: Blood pressure 146/88 mm Hg, heart rate 116 bpm, respiratory rate 28 breaths/min
- Hemodynamics: Central Venous Pressure (CVP) reading is 15 mm Hg
- Arterial Blood Gas (ABG): pH 7.32, PaCO2 56 mm Hg, PaO2 65 mm Hg, HCO3 27 mEq/L
- Auscultation: Fine crackles present in the dependent lobes of the left lung

Based on these findings, which action should the nurse implement immediately to mitigate the risk of a life-threatening complication?

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Answer: Decrease the intravenous fluid infusion rate and immediately notify the healthcare provider of the findings.

Answer

The correct action is to decrease the intravenous fluid infusion rate and immediately notify the healthcare provider.
Following a pneumonectomy, the entire right ventricular cardiac output is forcefully directed into the single remaining pulmonary vascular bed. This physiological shift places the client at an extreme risk for flash pulmonary edema. A Central Venous Pressure (CVP) of 15 mm Hg (normal 2-8 mm Hg) combined with hypertension, tachycardia, and new-onset left lung crackles clearly indicates severe fluid overload. The current IV infusion rate of 125 mL/hr is dangerously high for this specific surgical population. The priority action to reduce the risk of imminent physiological collapse is to strictly limit fluid intake and notify the provider for further orders, such as administering a diuretic.

Step-by-Step Solution

1
Analyze the client's vital signs and hemodynamic data.
CVP is significantly elevated at 15 mm Hg (normal is 2-8 mm Hg), accompanied by hypertension and tachycardia.
To determine fluid volume status, which currently indicates severe hypervolemia.
2
Auscultate lung sounds and interpret the arterial blood gas (ABG) results.
Fine crackles in the left (remaining) lung and respiratory acidosis (pH 7.32, PaCO2 56 mm Hg) are present.
To identify the physiological consequence of the hypervolemia, which is pulmonary edema compromising the only functional lung.
3
Correlate assessment findings with the specific surgical risks of a total pneumonectomy.
The client is suffering from fluid overload because the IV rate of 125 mL/hr is excessively high for a single pulmonary vascular bed.
Post-pneumonectomy clients are extremely vulnerable to right-sided heart failure and flash pulmonary edema; recognizing this risk dictates immediate fluid restriction over any other intervention.

Key Concept

Post-pneumonectomy fluid management and complication recognition
Question 3508Question →

An emergency department nurse is deployed to the site of a partial factory collapse to conduct field triage. According to the START (Simple Triage and Rapid Treatment) algorithm, arrange the following assessment actions in the correct chronological order.

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Answer

The correct sequence for the START algorithm is: 1) Instruct ambulatory victims to move, 2) Assess respirations, 3) Evaluate perfusion, and 4) Check mental status.
The START (Simple Triage and Rapid Treatment) algorithm follows a strict systematic sequence to maximize efficiency during a mass casualty event. The assessment flow uses the mnemonic RPM (Respirations, Perfusion, Mental Status) after initially clearing the walking wounded. Therefore, the correct chronological order is: directing ambulatory clients away (Minor/Green), assessing breathing and airway (Respirations), checking pulses or capillary refill (Perfusion), and evaluating command-following ability (Mental Status).

Step-by-Step Solution

1
Identify the initial step of the START disaster triage algorithm.
Instructing ambulatory victims to move to a safe zone.
This quickly isolates the 'minor' or green-tagged clients, allowing responders to focus on non-ambulatory victims.
2
Determine the first physiological parameter assessed on non-ambulatory victims.
Assess the respiratory rate and airway.
Airway and breathing are the most critical priorities. If a victim is not breathing, the airway is opened; if still not breathing, they are expectant (black). If breathing is over 30 per minute, they are immediate (red).
3
Identify the next physiological parameter if respirations are adequate (less than 30 breaths per minute).
Evaluate capillary refill or palpate the radial pulse.
Perfusion is the next priority. An absent radial pulse or capillary refill greater than 2 seconds indicates immediate (red) intervention is needed.
4
Determine the final assessment step if both respirations and perfusion are adequate.
Check the ability to obey simple commands.
Mental status determines if the victim is categorized as immediate (red) due to an inability to follow commands, or delayed (yellow) if they can follow commands.

Key Concept

Disaster Triage Assessment Sequence (START Method)
Question 3509Question →

A young adult client is admitted to the intensive care unit with profound lethargy, deep and rapid respirations, and a capillary blood glucose of 680 mg/dL (37.7 mmol/L). The healthcare provider diagnoses severe diabetic ketoacidosis (DKA). Arrange the following nursing interventions in the correct physiological priority order for managing this acute crisis. (Place the most immediate priority action at the top and the final transition action at the bottom).

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Answer

The correct sequence is: 1) Infuse 0.9% sodium chloride rapidly, 2) Verify the serum potassium level, 3) Initiate a continuous IV regular insulin infusion, 4) Add 5% dextrose when glucose falls to 250 mg/dL, and 5) Administer subcutaneous insulin before stopping the IV infusion.
The physiological management of DKA follows a strict sequential protocol based on life-threatening priorities. The immediate threat is hypovolemic shock from profound osmotic diuresis, necessitating rapid isotonic fluid resuscitation to restore perfusion. Once volume is restoring, the nurse must ensure the serum potassium is safe (>3.3 mEq/L) because insulin therapy will aggressively drive extracellular potassium into the cells. After potassium is verified, a continuous regular insulin infusion is started to reverse ketogenesis and correct the metabolic acidosis. As the blood glucose approaches 250 mg/dL (13.9 mmol/L), dextrose is introduced into the IV fluids to prevent sudden hypoglycemia and protect against cerebral edema from rapid osmolality shifts. Finally, when the acidosis is resolved and the IV insulin is ready to be discontinued, a subcutaneous basal dose must be administered with a 1 to 2 hour overlap to prevent rebound diabetic ketoacidosis.

Step-by-Step Solution

1
Address the most immediate threat to circulation.
Isotonic fluid resuscitation is initiated.
Profound dehydration from osmotic diuresis compromises tissue perfusion. Intravascular volume must be restored before medications can effectively circulate.
2
Ensure physiological safety prior to pharmacological intervention.
Serum potassium is evaluated.
Insulin therapy causes an intracellular shift of potassium. If the client is hypokalemic, insulin can cause lethal cardiac arrhythmias.
3
Revert the underlying pathophysiological metabolic crisis.
Continuous intravenous regular insulin is started.
Insulin is required to suppress fat breakdown and ketogenesis, which directly reverses the severe metabolic acidosis.
4
Anticipate and prevent iatrogenic complications as treatment progresses.
Dextrose is added to the IV fluids when blood glucose reaches 250 mg/dL (13.9 mmol/L).
A rapid drop in serum osmolality can cause fluid shifts into the brain, resulting in cerebral edema. Dextrose stabilizes the glucose decline.
5
Safely transition the client from acute emergency management to maintenance therapy.
Subcutaneous insulin is given before the IV infusion is stopped.
Intravenous insulin has a very short half-life. An overlap with subcutaneous insulin is necessary to prevent immediate recurrence of ketogenesis.

Key Concept

The physiological management of Diabetic Ketoacidosis (DKA) requires a strict priority sequence: volume resuscitation, electrolyte safety verification, insulin administration, complication prevention, and safe transition.
Question 3510Question →

An individual with acute necrotizing pancreatitis is currently receiving care on a progressive care unit. The client reports excruciating abdominal pain radiating to the back. A recent rhythm check on the central monitor reveals a newly prolonged QT interval. Current hemodynamics include a mean arterial pressure (MAP) of 62 mmHg, a heart rate of 118 beats per minute, and shallow respirations at 28 breaths per minute. Based on these clinical findings, which of the following interventions are critical for the nurse to implement? Select all that apply.

Select all that apply

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Answer: Initiate the prescribed intravenous calcium gluconate replacement.; Titrate the continuous isotonic intravenous fluid infusion upward as prescribed.; Verify the continuous low wall suction setting on the gastric decompression tube and keep the client strictly NPO.

Answer

The critical interventions include initiating intravenous calcium gluconate, titrating isotonic intravenous fluids upward, and verifying gastric decompression while maintaining strict NPO status.
The correct actions directly address the most critical immediate risks for a client with severe acute pancreatitis. Intravenous fluids counteract the profound hypovolemic shock caused by retroperitoneal third-spacing. Intravenous calcium directly treats the severe hypocalcemia evidenced by the prolonged QT interval. Maintaining an NPO status with gastric suctioning remains the foundational therapy to halt pancreatic autodigestion.

Step-by-Step Solution

1
Analyze the telemetry finding of a newly prolonged QT interval in a client with necrotizing pancreatitis.
Identify that the prolonged QT interval is a classical manifestation of severe hypocalcemia, a known complication of fat necrosis.
Recognizing this life-threatening electrolyte imbalance prioritizes the immediate need for intravenous calcium replacement.
2
Evaluate the current hemodynamic parameters (MAP of 62 mmHg, HR 118 bpm).
Determine that the client is exhibiting signs of hypovolemic shock resulting from massive fluid shifts (third-spacing) into the retroperitoneal cavity.
Prompt upward titration of isotonic fluids is required to restore adequate tissue perfusion and prevent multi-organ failure.
3
Assess the fundamental pathophysiological management of acute pancreatitis.
Confirm the necessity of resting the pancreas by maintaining strict NPO status and employing continuous nasogastric suction.
These actions halt the release of pancreatic enzymes, mitigating further autodigestion, systemic inflammation, and excruciating pain.

Key Concept

Mitigation of life-threatening systemic complications (hypovolemic shock and hypocalcemia) in severe acute pancreatitis.
Estimated Time:2m 0s
Question 3511Question →

A nurse is evaluating a client who has just returned to the clinical unit following a percutaneous liver biopsy. The client is awake, oriented, and reports mild tenderness at the puncture site on the right side. Vital signs are currently stable. Which of the following nursing actions is the priority to minimize this client's risk for immediate post-procedure complications?

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Answer: Assist the client into a right lateral decubitus position, placing a small rolled towel beneath the costal margin.

Answer

The priority action is to assist the client into a right lateral decubitus position, placing a small rolled towel beneath the costal margin.
Following a percutaneous liver biopsy, the most critical risk is hemorrhage due to the liver's extensive blood supply. Positioning the client on their right side (right lateral decubitus) and placing a rolled towel or sandbag under the costal margin uses the client's body weight to apply direct pressure to the liver against the chest wall. This mechanical compression promotes hemostasis and prevents bleeding.

Step-by-Step Solution

1
Identify the primary physiological risk following a percutaneous liver biopsy.
The most significant immediate risk is internal hemorrhage because the liver is a highly vascular organ.
Recognizing the most lethal potential complication dictates the immediate nursing priority.
2
Determine the physical mechanism needed to mitigate this specific bleeding risk.
Direct mechanical compression must be applied externally to the puncture site.
External pressure promotes hemostasis and clot formation, preventing blood from pooling in the abdominal cavity.
3
Select the nursing intervention that safely achieves this mechanical compression.
Placing the client in a right lateral decubitus (right side-lying) position with a towel or sandbag under the lower rib cage uses the client's own body weight to compress the liver.
This physical positioning directly reduces the risk of hemorrhage, making it the highest priority action upon the client's return.

Key Concept

Post-Procedure Complication Prevention: Liver Biopsy Positioning
Question 3512Question →

While evaluating a client recovering from a large anterior myocardial infarction in the intensive care unit, the nurse observes new-onset bilateral crackles extending to the mid-lung fields, severe jugular venous distension, and an audible S3 gallop. The client is restless, and their extremities are cool and mottled. Current vital signs include a blood pressure of 82/52 mm Hg, a heart rate of 124 beats/min, and a respiratory rate of 28 breaths/min. Based on these findings, which of the following prescribed interventions is the priority for the nurse to implement?

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Answer: Initiate a continuous intravenous infusion of dobutamine.

Answer

Initiate a continuous intravenous infusion of dobutamine.
The client is exhibiting classic signs of cardiogenic shock (severe hypotension, compensatory tachycardia, cool and mottled extremities) accompanied by acute left and right-sided heart failure (pulmonary crackles, S3 gallop, jugular venous distension). Dobutamine is a positive inotropic agent that increases myocardial contractility and cardiac output, improving tissue perfusion without adding dangerous fluid volume to an already overloaded cardiovascular system.

Step-by-Step Solution

1
Analyze the client's physical assessment findings and vital signs.
The client presents with severe hypotension (82/52 mm Hg), tachycardia (124 beats/min), crackles, an S3 gallop, and jugular venous distension.
To identify the acute physiological complication occurring secondary to the myocardial infarction.
2
Synthesize the clinical data to determine the specific type of shock state.
The combination of poor peripheral perfusion (cool, mottled extremities) and severe fluid overload (pulmonary edema, JVD) indicates the client has developed cardiogenic shock.
Different types of shock require entirely distinct priority interventions, and misdiagnosing the shock state can lead to fatal outcomes.
3
Evaluate the prescribed interventions against the diagnosis of cardiogenic shock.
Dobutamine increases contractility; fluid boluses and leg elevation worsen fluid overload; metoprolol decreases contractility.
To select the action that safely improves cardiac output and tissue perfusion without exacerbating the existing pulmonary congestion.

Key Concept

Cardiogenic Shock Recognition and Management
Estimated Time:1m 15s
Question 3513Question →

A community hospital is located in the direct path of an approaching tornado, and the facility's severe weather protocol has been activated. A nurse is working on a third-floor medical-surgical unit with a mix of ambulatory and bedbound clients. Which action should the nurse implement to ensure client safety?

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Answer: Move ambulatory clients and those in wheelchairs to windowless interior hallways.

Answer

The correct action is to move ambulatory clients and those in wheelchairs to windowless interior hallways.
During a tornado warning, the immediate goal is to protect individuals from flying debris and shattering glass. Relocating clients who can be moved to interior, windowless areas (such as central hallways or bathrooms) places the maximum amount of structural reinforcement between them and the storm. If bedbound clients cannot be moved to the hallway, their beds should be moved as far from the windows as possible, and they should be covered with heavy blankets and pillows.

Step-by-Step Solution

1
Identify the primary environmental threats associated with a tornado.
Recognize that high winds, flying debris, and shattered glass pose the greatest risks to life safety.
Understanding the mechanism of injury guides the selection of the most effective protective measures.
2
Evaluate the safety of different locations within the hospital unit.
Determine that interior, windowless spaces (like hallways and bathrooms) are the safest, while exterior rooms with windows are the most dangerous.
Structural walls in the interior provide a barrier against wind and debris.
3
Assess the provided interventions against established emergency response protocols.
Identify that using elevators and opening windows are explicitly contraindicated during severe weather events.
Power outages can trap individuals in elevators, and opening windows increases exposure to the storm.
4
Select the action that maximizes client safety according to Maslow's Hierarchy of Needs.
Choose the intervention that proactively relocates clients away from the hazard zone.
Protecting clients from imminent physical harm is the highest priority in disaster response.

Key Concept

Severe Weather and Tornado Emergency Response Protocol
Estimated Time:1m 0s
Question 3514Question →

A nurse is caring for a client admitted with a severe urinary tract infection who has been receiving intravenous antibiotics. Over the past two hours, the client has become increasingly restless. The nurse notes the following assessment data:

Baseline Data (On Admission):
Blood pressure: 118/76 mm Hg
Heart rate: 88 beats/minute
Skin: Warm and dry

Current Data:
Blood pressure: 84/52 mm Hg
Heart rate: 126 beats/minute (thready)
Respiratory rate: 28 breaths/minute
Skin: Pale, cool, and clammy to the touch
Arterial Blood Gas (ABG) on room air: pH 7.28, PaCO2 31 mm Hg, HCO3 15 mEq/L, PaO2 89 mm Hg

Which of the following actions should the nurse take immediately to reduce the risk of severe physiological decompensation?

Show answer & explanation

Answer: Notify the healthcare provider and prepare to rapidly administer an isotonic intravenous fluid bolus.

Answer

Notify the healthcare provider and prepare to rapidly administer an isotonic intravenous fluid bolus.
The client is exhibiting clear signs of the late, hypodynamic (cold) phase of septic shock, characterized by profound hypotension, thready tachycardia, and pale, cool, clammy skin due to severe peripheral vasoconstriction. The ABG reveals metabolic acidosis with partial respiratory compensation, a direct result of lactic acid accumulation from widespread tissue hypoperfusion. The immediate priority to reduce the risk of multi-organ failure and death is aggressive fluid resuscitation with isotonic crystalloids to restore intravascular volume and improve systemic tissue perfusion.

Step-by-Step Solution

1
Analyze the physical assessment findings and vital sign trends.
The client has developed profound hypotension, a thready tachycardia, and pale, cool, clammy skin.
Recognizing these specific clinical manifestations confirms the client has progressed to the late, hypodynamic (cold) phase of septic shock.
2
Interpret the Arterial Blood Gas (ABG) values.
The pH is acidotic (7.28), PaCO2 is alkalotic (31), and HCO3 is acidotic (15).
This identifies metabolic acidosis with partial respiratory compensation, which occurs secondary to lactic acid accumulation from severe tissue hypoperfusion.
3
Evaluate the physiological impact of potential interventions.
Placing the client upright would dangerously pool blood in the lower extremities, and treating the condition as a primary respiratory defect ignores the core hemodynamic collapse.
Interventions must focus on the primary mechanism of decompensation without causing iatrogenic harm through contraindicated positioning.
4
Select the highest priority intervention to mitigate risk.
Aggressive fluid resuscitation with isotonic crystalloids is prioritized.
Restoring intravascular volume is the most critical immediate action to improve cardiac output, reverse tissue hypoxia, and prevent multi-organ failure.

Key Concept

Hemodynamic Stabilization and Complication Mitigation in Septic Shock
Question 3515Question →

A nurse is managing the basic care and comfort of an older adult client who is 48 hours postoperative following a right above-the-knee amputation. The client reports mild discomfort in the residual limb and requests that it be elevated on a soft pillow. Which of the following nursing actions is the most appropriate?

Show answer & explanation

Answer: Explain the importance of contracture prevention and assist the client into a prone position for 20 to 30 minutes.

Answer

Explain the importance of contracture prevention and assist the client into a prone position for 20 to 30 minutes.
After the first 24 hours following a lower extremity amputation, elevating the residual limb on a pillow is strictly contraindicated as it promotes the development of hip flexion contractures. The most appropriate action is to assist the client into a prone position for 20 to 30 minutes, 3 to 4 times a day, to actively stretch the hip flexor muscles and prevent contractures, while explaining the rationale for this intervention to ensure client cooperation.

Step-by-Step Solution

1
Analyze the client's postoperative timeline and surgical procedure.
The client is 48 hours post-op for a right above-the-knee amputation (AKA).
The postoperative timeline is critical because positioning protocols change dramatically after the first 24 hours to prevent immobility complications.
2
Evaluate the client's request to elevate the residual limb on a pillow.
Identify that elevation on a pillow at this stage causes prolonged hip flexion.
While elevation reduces edema in the first 24 hours, prolonged hip flexion after 24 hours rapidly leads to hip flexion contractures, severely complicating future prosthetic use.
3
Select the nursing intervention that promotes comfort while preventing contractures.
The prone position extends the hip joint and actively stretches the flexor muscles.
Lying prone for 20 to 30 minutes, 3 to 4 times a day, is the evidence-based standard to prevent contractures in AKA clients.

Key Concept

Prevention of hip flexion contractures following lower extremity amputation
Question 3516Question →

A nurse is evaluating a client who sustained blunt abdominal trauma in a motor vehicle collision. Which of the following assessment findings should the nurse identify as early indicators of compensatory hypovolemic shock? (Select all that apply.)

Select all that apply

Show answer & explanation

Answer: Narrowing pulse pressure; Heart rate of 118 beats/min; New-onset restlessness

Answer

The early indicators of compensatory hypovolemic shock include a narrowing pulse pressure, tachycardia, and new-onset restlessness.
During the early compensatory phase of hypovolemic shock, the body activates the sympathetic nervous system to maintain cardiac output and vital organ perfusion. This neurohormonal response results in an increased heart rate (tachycardia) and peripheral vasoconstriction, which elevates the diastolic pressure and creates a narrowing pulse pressure. Additionally, the brain is highly sensitive to slight decreases in oxygen delivery, making subtle behavioral changes like restlessness, anxiety, or mild confusion some of the earliest clinical indicators of impaired perfusion.

Step-by-Step Solution

1
Identify the underlying pathophysiology of the early (compensatory) stage of hypovolemic shock.
The body activates the sympathetic nervous system and the renin-angiotensin-aldosterone system to maintain cardiac output and tissue perfusion in response to volume loss.
Understanding the physiologic response helps differentiate early compensatory signs from late decompensated signs.
2
Evaluate each clinical finding to determine if it reflects early compensation or late failure.
Tachycardia, a narrowing pulse pressure, and early cerebral hypoxia (restlessness) are compensatory. Severe hypotension is a sign that compensation has failed.
Recognizing signs before decompensation occurs is critical for life-saving interventions.
3
Distinguish the signs of hypovolemic shock from other classifications of shock.
Hypovolemia presents with cool skin and thready pulses, eliminating options describing warm skin or bounding pulses, which indicate distributive shock.
Different types of shock have contrasting early clinical presentations based on their effect on systemic vascular resistance.

Key Concept

Early Recognition of Compensatory Hypovolemic Shock
Question 3517Question →

An older adult client with advanced dementia and impaired physical mobility is admitted to an acute care unit. The client has poor nutritional intake and is at high risk for skin breakdown. Which interventions should the nurse include in the plan of care to promote basic care and comfort? Select all that apply.

Select all that apply

Show answer & explanation

Answer: Suspend the client's heels completely off the surface of the bed using pillows.; Apply a moisture barrier ointment to the perineal area following each episode of incontinence.; Provide oral hygiene using a soft-bristled toothbrush before meals to stimulate appetite.

Answer

The correct interventions are suspending the client's heels off the bed, applying a moisture barrier after incontinence, and providing oral hygiene prior to meals.
Suspending the heels, applying perineal moisture barriers, and performing pre-meal oral hygiene are evidence-based basic care interventions that protect skin integrity, improve hygiene, and promote nutritional intake for high-risk immobile clients.

Step-by-Step Solution

1
Analyze the client's risk factors based on the clinical presentation.
The client is at elevated risk for pressure injuries due to immobility and is at risk for malnutrition due to poor intake.
Identifying specific physiological risks guides the selection of targeted comfort and care interventions.
2
Evaluate the interventions targeting skin integrity.
Suspending the heels and applying perineal moisture barriers directly prevent pressure-related and moisture-associated skin breakdown.
Protecting skin integrity is a fundamental component of basic care and comfort for immobile clients.
3
Evaluate the interventions targeting nutritional intake.
Providing oral hygiene before meals improves oral health and stimulates appetite.
Good oral hygiene directly supports enhanced nutritional intake and comfort.
4
Identify contraindicated or unsafe actions among the remaining options.
Continuous high-Fowler's positioning, delegating primary clinical assessments, and ignoring sudden acute confusion are unsafe practices.
Patient safety requires proper positioning to prevent shearing forces, appropriate delegation limits, and recognizing abnormal physiological changes.

Key Concept

Basic care and comfort for immobile older adults involves vigilant skin protection, oral hygiene to promote nutrition, appropriate positioning to prevent shearing, and recognizing acute clinical changes.
Question 3518Question →

A client receiving continuous total parenteral nutrition (TPN) via a single-lumen peripherally inserted central catheter (PICC) suddenly develops acute pulmonary edema. The client's oxygen saturation drops to 84%84\% on room air, and the nurse auscultates bilateral crackles. The healthcare provider prescribes a stat dose of intravenous furosemide 60 mg60\text{ mg}. The available furosemide concentration is 10 mg/mL10\text{ mg/mL}. Which of the following is the most appropriate action by the nurse?

Show answer & explanation

Answer: Insert a peripheral intravenous catheter and administer 6 mL6\text{ mL} of the furosemide solution over 33 to 66 minutes.

Answer

The nurse must insert a new peripheral intravenous catheter and administer 6 mL6\text{ mL} of furosemide slowly over 33 to 66 minutes.
The correct action involves three critical safety principles. First, the nurse accurately calculates the dose volume as 6 mL6\text{ mL} (60 mg÷10 mg/mL60\text{ mg} \div 10\text{ mg/mL}). Second, the nurse applies the pharmacological knowledge that furosemide must be administered slowly to prevent ototoxicity, making a 33 to 66-minute push appropriate. Finally, the nurse recognizes that total parenteral nutrition (TPN) requires a strictly dedicated line due to the extreme risk of chemical incompatibility and precipitation. Because the client only has a single-lumen PICC, establishing a new peripheral intravenous catheter is the only safe method to administer the life-saving medication.

Step-by-Step Solution

1
Calculate the correct medication volume.
60 mg60\text{ mg} ordered ÷10 mg/mL\div 10\text{ mg/mL} concentration = 6 mL6\text{ mL} of furosemide.
Accurate dosage calculation is essential to ensure the client receives the therapeutic dose.
2
Determine the safe rate of administration.
The medication should be pushed slowly over 33 to 66 minutes.
Rapid intravenous administration of high-dose furosemide can cause transient or permanent ototoxicity.
3
Evaluate intravenous compatibility and access.
The current single-lumen PICC cannot be used because it is dedicated to total parenteral nutrition.
Total parenteral nutrition requires a strictly dedicated line due to the high risk of chemical incompatibility, precipitation, and infection.
4
Formulate the correct clinical action plan.
Establish a new peripheral intravenous catheter to safely administer the stat diuretic.
A secondary access site allows for immediate treatment of the pulmonary edema without compromising the safety of the central line.

Key Concept

Safe Parenteral Medication Administration and TPN Principles
Question 3519Question →

A client is in the intensive care unit 48 hours after sustaining a severe traumatic brain injury. The nurse assesses the following clinical data:

ParameterCurrent Value
Blood pressure78/48 mm Hg
Heart rate134 beats/min (thready)
Respiratory rate26 breaths/min
Central venous pressure1 mm Hg
Urine output (last 2 hr)1,100 mL/hr (pale)
Serum sodium158 mEq/L (158 mmol/L)
Serum osmolality328 mOsm/kg
Urine specific gravity1.002

The client is lethargic and responds only to noxious stimuli. Which of the following is the priority nursing action?

Show answer & explanation

Answer: Administer a rapid intravenous bolus of 0.9% sodium chloride.

Answer

The priority action is to administer a rapid intravenous bolus of 0.9% sodium chloride.
The client's profound polyuria, hypernatremia, elevated serum osmolality, and dilute urine indicate central diabetes insipidus, a common complication of traumatic brain injury. However, the client is currently in hypovolemic shock (blood pressure 78/48 mm Hg, heart rate 134 beats/min, CVP 1 mm Hg) due to massive fluid loss. According to the ABCs (Airway, Breathing, Circulation) of prioritization, restoring cardiovascular perfusion is the immediate life-saving priority. Isotonic crystalloids, such as 0.9% sodium chloride, remain within the intravascular space to expand circulating volume and restore blood pressure. Failing to treat the profound hypovolemia immediately will lead to cardiovascular collapse.

Step-by-Step Solution

1
Analyze the clinical data to identify the physiological problem.
The combination of severe polyuria, hypernatremia, and low urine specific gravity following a brain injury indicates central diabetes insipidus.
Traumatic brain injury can disrupt the hypothalamus or posterior pituitary, halting antidiuretic hormone (ADH) secretion.
2
Evaluate the client's hemodynamic status.
Hypotension (78/48 mm Hg), tachycardia (134 beats/min), and a critically low CVP (1 mm Hg) confirm the client has progressed to hypovolemic shock due to massive fluid loss.
Urine output exceeding 500 mL/hr rapidly depletes intravascular volume, leading to decreased venous return and cardiac output.
3
Apply principles of prioritization (ABCs).
Circulation is severely compromised. Restoring intravascular volume to maintain organ perfusion takes priority over correcting the serum sodium level or administering hormonal therapy.
Without immediate volume resuscitation, the client will suffer irreversible ischemic organ damage or cardiac arrest.
4
Determine the appropriate fluid for shock resuscitation.
Isotonic fluids (0.9% sodium chloride) are required to rapidly expand the intravascular space. Hypotonic fluids (0.45% NaCl) will leave the vascular space and fail to reverse the shock state.
Although the client is hypernatremic, 0.9% NaCl is the standard for hypovolemic shock. Interestingly, with a serum osmolality of 328 mOsm/kg, 0.9% NaCl (308 mOsm/L) is technically hypotonic to this specific client's blood.

Key Concept

In clients with diabetes insipidus who develop hypovolemic shock, immediate intravascular volume resuscitation with isotonic crystalloids takes absolute priority over correcting hypernatremia with hypotonic fluids or administering antidiuretic hormone.
Question 3520Question →

A nurse is preparing to perform a routine sterile dressing change for a client's peripherally inserted central catheter (PICC). To minimize the risk of central line-associated bloodstream infection (CLABSI) and prevent catheter dislodgement, place the following nursing actions in the correct sequential order.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct sequence prioritizes respiratory source control, followed by safe removal of the contaminated dressing, hand hygiene, sterile antisepsis, mandatory air drying, and final sterile occlusion.
The correct sequence systematically eliminates risks by moving from general environmental control (masking) to safe removal (clean technique), transitioning via hand hygiene to absolute asepsis (sterile gloves, friction scrub, air drying), and culminating in environmental sealing (occlusive dressing).

Step-by-Step Solution

1
Apply a surgical mask to the client and instruct them to turn their head away.
Establishes immediate respiratory droplet source control.
Airborne or droplet pathogens from the client's respiratory tract are a primary source of CLABSI. This must be prevented before exposing the vulnerable insertion site.
2
Don clean gloves and remove the existing dressing by pulling toward the insertion site.
The old dressing is safely detached without disturbing the catheter.
The old dressing is heavily contaminated with skin flora, requiring only clean gloves. Pulling toward the site prevents creating tension that could dislodge the catheter.
3
Discard the old dressing and clean gloves, then perform hand hygiene.
Removes contaminated materials and sanitizes the nurse's hands.
Hand hygiene acts as the critical bridge between the clean removal phase and the sterile application phase, ensuring no pathogens are transferred to the sterile supplies.
4
Don sterile gloves and scrub the site with a chlorhexidine applicator.
The insertion site undergoes chemical and mechanical antisepsis.
Sterile gloves maintain the integrity of the procedure. Chlorhexidine with back-and-forth friction physically disrupts bacterial biofilms in the epidermal layers.
5
Allow the chlorhexidine to air dry completely.
The antiseptic achieves its full bactericidal properties.
Chlorhexidine requires time to chemically destroy bacterial cell walls. Prematurely applying the dressing traps moisture (reducing efficacy), and fanning introduces airborne microbes.
6
Apply a new sterile transparent occlusive dressing.
The catheter site is securely sealed from the environment.
The transparent dressing provides a continuous, sterile barrier against microbial entry while allowing ongoing visual assessment for signs of infection.

Key Concept

Central line dressing changes mandate a strict sequential transition from clean technique (removing the contaminated dressing) to sterile technique (cleansing and applying the new dressing) to prevent CLABSI, while utilizing mechanical friction and proper drying times for antiseptics.
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