Physiological Integrity

1960 questions

Question 1501Question →

A nurse is caring for a 78-year-old client admitted with community-acquired pneumonia and a history of severe chronic obstructive pulmonary disease (COPD). The client suddenly becomes highly restless, disoriented, and repeatedly attempts to remove their nasal cannula. Current vital signs are: Heart Rate 114 bpm, Blood Pressure 148/86 mm Hg, and Respiratory Rate 28 breaths/min. An arterial blood gas (ABG) drawn 15 minutes ago reveals a pH of 7.28, PaCO2 of 65 mm Hg, PaO2 of 57 mm Hg, and HCO3 of 28 mEq/L. To reduce the risk of further physiological deterioration, which action should the nurse take first?

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Answer: Place the client in an upright, high-Fowler's position and coach them through pursed-lip breathing.

Answer

The most appropriate first action is to elevate the head of the bed to a high-Fowler's position and assist the client with pursed-lip breathing to improve gas exchange and reduce trapped carbon dioxide levels.
The client is experiencing acute-on-chronic respiratory acidosis and hypoxemia, which is causing neurological manifestations like restlessness and confusion. The most immediate, safe, and effective action to reduce the risk of respiratory failure is to place the client in a high-Fowler's position to maximize lung expansion and use pursed-lip breathing to help exhale trapped carbon dioxide. This non-pharmacological approach directly addresses the root cause of the agitation without introducing new risks.

Step-by-Step Solution

1
Analyze the arterial blood gas (ABG) results and clinical presentation.
The ABG reveals uncompensated acute-on-chronic respiratory acidosis (low pH, high PaCO2) and hypoxemia. The new-onset restlessness and confusion are classic neurological signs of impaired gas exchange.
Identifying the physiological root cause of the behavioral changes dictates the safest and most effective intervention.
2
Evaluate the risk associated with each potential intervention.
Applying restraints ignores the underlying hypoxia, increasing oxygen too much risks respiratory arrest in a COPD patient, and dismissing the confusion delays life-saving care.
Risk reduction requires selecting an action that stabilizes the client without introducing iatrogenic harm.
3
Select the least invasive, most physiologically beneficial independent nursing action.
Repositioning the client upright maximizes diaphragmatic excursion, while pursed-lip breathing creates positive end-expiratory pressure to keep alveoli open and blow off excess CO2.
This directly treats the respiratory failure, easing the work of breathing and reducing the agitation.

Key Concept

Prioritizing non-invasive respiratory interventions for acute-on-chronic respiratory acidosis
Question 1502Question →

A young adult client with type 1 diabetes mellitus is admitted to the emergency department with a blood glucose level of 450 mg/dL. The nurse suspects the client is experiencing diabetic ketoacidosis (DKA). Which assessment findings and laboratory values should the nurse expect? Select all that apply.

Select all that apply

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Answer: Arterial blood pH of 7.28; Deep, rapid respiratory pattern; Serum bicarbonate (HCO3-) of 14 mEq/L

Answer

The expected findings are an arterial blood pH of 7.28, a deep, rapid respiratory pattern, and a serum bicarbonate (HCO3-) of 14 mEq/L.
Diabetic ketoacidosis (DKA) produces an excess of acidic ketone bodies, leading to a primary metabolic acidosis. This is confirmed by an arterial blood pH below 7.35 and a serum bicarbonate (HCO3-) level below 22 mEq/L. To compensate for the severe acid load, the respiratory center is stimulated to increase the depth and rate of breathing (known as Kussmaul respirations) to expel carbon dioxide, which acts as an acid in the body.

Step-by-Step Solution

1
Identify the underlying pathophysiology of diabetic ketoacidosis (DKA).
DKA occurs when insulin deficiency leads to the breakdown of fat for energy, producing acidic ketone bodies.
Understanding the mechanism of DKA is essential to predict the resulting systemic acid-base imbalance.
2
Determine the primary acid-base imbalance caused by ketone accumulation.
The excess acid depletes base buffers, resulting in metabolic acidosis (low pH and low bicarbonate).
This directly identifies which laboratory values are expected in the client's arterial blood gas results.
3
Evaluate the body's compensatory mechanisms for this imbalance.
The respiratory system compensates for metabolic acidosis by increasing the rate and depth of respirations (Kussmaul breathing) to blow off carbon dioxide.
Correlating lab values with physical assessment findings provides a complete clinical picture.

Key Concept

Metabolic acidosis and compensatory mechanisms in Diabetic Ketoacidosis (DKA)
Question 1503Question →

Following a bronchoscopy utilizing topical throat anesthesia, a client is resting in the observation area and requests a glass of water. Which specific nursing assessment must be completed first to ensure the client's safety?

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Answer: Determine the return of the gag reflex.

Answer

The nurse must determine the return of the gag reflex before offering any oral fluids to prevent aspiration.
Topical anesthesia used during a bronchoscopy temporarily paralyzes the vocal cords and numbs the pharynx, suppressing the normal gag and swallow reflexes. To reduce the risk of potential complications, specifically aspiration, the nurse must verify that the gag reflex has returned before giving the client any food or fluids.

Step-by-Step Solution

1
Analyze the clinical scenario and the effects of the procedure.
The client underwent a bronchoscopy using topical anesthesia, which temporarily numbs the throat and vocal cords.
Understanding the physiological impact of the procedure identifies potential immediate risks to the client.
2
Evaluate the client's request against physiological safety.
The client is asking for water. Without an intact gag reflex, swallowing fluids can lead to fluid entering the trachea instead of the esophagus.
Drinking fluids prematurely poses a severe risk for aspiration pneumonia or airway compromise.
3
Select the priority nursing intervention.
The nurse must check the gag reflex (often by gently touching the back of the throat with a tongue depressor or cotton swab) before providing anything by mouth.
Confirming the return of the gag reflex provides objective evidence that the client's airway is protected during swallowing.

Key Concept

Post-Procedure Aspiration Prevention
Question 1504Question →

A triage nurse receives a client with type 1 diabetes mellitus who presents with deep, rapid breathing, a fruity breath odor, and increasing lethargy. The initial point-of-care blood glucose is 512512 mg/dL (28.428.4 mmol/L). Arrange the following nursing interventions in the priority order they should be implemented.

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Answer

The priority sequence is to first establish IV access, then rapidly infuse normal saline, check potassium levels, initiate the continuous insulin infusion, and finally add dextrose when blood glucose drops to 250250 mg/dL.
The correct physiological adaptation sequence for DKA emphasizes circulation first. The nurse must establish IV access to deliver rapid fluid boluses (0.9% sodium chloride). Once vascular volume is stabilizing, the nurse must verify the serum potassium level, as insulin forces potassium into cells and can cause fatal hypokalemia. After confirming safe potassium levels, regular insulin is continuously infused. Finally, when the blood glucose level lowers to 250250 mg/dL, dextrose is added to the IV fluids to prevent sudden hypoglycemia while continuing to treat the acidosis.

Step-by-Step Solution

1
Identify the primary physiological threat.
The client is in Diabetic Ketoacidosis (DKA) and is at highest risk for hypovolemic shock due to severe osmotic diuresis.
According to Maslow's hierarchy and ABC (Airway, Breathing, Circulation) principles, restoring circulation (intravascular volume) is the top priority.
2
Sequence the interventions for fluid resuscitation.
Establishing IV access must occur before normal saline can be infused.
A route is required before the treatment can be delivered.
3
Determine the timing for medication administration.
Insulin administration must follow fluid resuscitation and potassium verification.
Administering insulin without fluids can worsen vascular collapse. Giving insulin without knowing potassium levels can trigger fatal hypokalemia.
4
Plan for ongoing complication prevention.
Dextrose is added late in the sequence.
Once blood glucose falls to 250250 mg/dL, dextrose prevents hypoglycemia while insulin continues to resolve the acidosis.

Key Concept

Management of Diabetic Ketoacidosis (DKA) prioritizes fluid resuscitation followed by electrolyte evaluation and insulin administration.
Question 1505Question →

A nurse is caring for a 6262-year-old client who returned to the telemetry unit 22 hours ago following a percutaneous coronary intervention (PCI) via the right femoral artery. Which of the following assessment findings require immediate follow-up by the nurse? Select all that apply.

Select all that apply

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Answer: The client reports a new onset of dull, aching pain in the right flank and lower back.; The client's heart rate steadily increases from 7676 to 114114 beats per minute over a 4545-minute period.; The client's right foot is pale and feels cooler to the touch compared to the left foot.

Answer

The findings that require immediate follow-up are the new onset of dull right flank/lower back pain, the steadily increasing heart rate, and the pale, cool right foot.
Following a femoral cardiac catheterization, the nurse must monitor closely for acute complications. Dull, aching pain in the flank or lower back is a classic symptom of a retroperitoneal hemorrhage. A steadily increasing heart rate is an early systemic sign of hypovolemic shock due to internal bleeding. A pale and cool extremity distal to the puncture site indicates arterial occlusion or thrombosis, which compromises tissue perfusion. All of these findings signal severe complications requiring immediate emergency intervention.

Step-by-Step Solution

1
Analyze the procedure and its associated potential physiological complications.
The client underwent a PCI via the right femoral artery. Major risks include internal bleeding (such as retroperitoneal hemorrhage), hematoma formation, and distal arterial occlusion.
Identifying specific procedural risks focuses the assessment on early signs of physiological decompensation.
2
Evaluate each option to distinguish between signs of instability versus expected postoperative findings.
Flank pain, an escalating heart rate, and a pale/cool extremity are abnormal indicators of severe complications. A 1515-degree bed elevation, normal ABGs, and unchanged baseline pulses are expected and safe.
Distinguishing between expected outcomes and life-threatening complications is essential for prioritizing immediate nursing interventions.

Key Concept

Reduction of Risk Potential: Post-Procedure Complication Monitoring
Question 1506Question →

A nurse is caring for a client with diabetic ketoacidosis (DKA) who is receiving a continuous intravenous (IV) infusion of regular insulin at 0.1 units/kg/hr0.1\text{ units/kg/hr}. The client's most recent laboratory results reveal a blood glucose of 215 mg/dL215\text{ mg/dL} (11.9 mmol/L11.9\text{ mmol/L}), a serum potassium of 3.1 mEq/L3.1\text{ mEq/L} (3.1 mmol/L3.1\text{ mmol/L}), and an anion gap of 18 mEq/L18\text{ mEq/L}. The current maintenance IV fluid is 0.45%0.45\% sodium chloride infusing at 150 mL/hr150\text{ mL/hr}. Which of the following is the priority nursing action?

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Answer: Pause the regular insulin infusion and request an immediate prescription for intravenous potassium replacement.

Answer

The priority action is to pause the regular insulin infusion and request an immediate prescription for intravenous potassium replacement.
The correct action is to pause the insulin infusion and replace potassium. Regular insulin causes an intracellular shift of potassium, rapidly depleting serum levels. In DKA protocols, if the serum potassium falls below 3.3 mEq/L3.3\text{ mEq/L} (3.3 mmol/L3.3\text{ mmol/L}), continuous IV insulin must be withheld immediately, and intravenous potassium must be administered to prevent life-threatening cardiac dysrhythmias.

Step-by-Step Solution

1
Analyze the client's potassium level in relation to the pharmacological effects of the insulin infusion.
The serum potassium is 3.1 mEq/L3.1\text{ mEq/L} (3.1 mmol/L3.1\text{ mmol/L}), which is critically low (hypokalemia).
Intravenous insulin drives potassium into the intracellular space. Continuing the infusion will further lower serum potassium levels and can precipitate fatal cardiac dysrhythmias.
2
Evaluate the blood glucose level and ongoing fluid management requirements.
The blood glucose is 215 mg/dL215\text{ mg/dL} (11.9 mmol/L11.9\text{ mmol/L}), crossing the typical threshold (<250 mg/dL< 250\text{ mg/dL}) that indicates the need to add dextrose to IV fluids.
Adding dextrose prevents hypoglycemia while allowing insulin to continue clearing ketones, but this intervention is secondary to addressing an immediate risk of cardiac arrest.
3
Assess the anion gap to determine the resolution status of the diabetic ketoacidosis.
The anion gap is 18 mEq/L18\text{ mEq/L}.
A normal anion gap is 8−12 mEq/L8-12\text{ mEq/L}. An elevated gap means ketoacidosis is ongoing, signifying that IV insulin therapy must eventually be resumed once potassium is stabilized.
4
Prioritize the nursing interventions based on immediate physiological threats.
Holding the insulin infusion and replacing potassium is the most critical immediate action.
According to the ABCs (Airway, Breathing, Circulation) and Maslow's hierarchy of needs, preventing a lethal cardiac arrhythmia (Circulation) takes strict precedence over managing blood glucose levels or correcting metabolic acidosis.

Key Concept

Safe administration of intravenous insulin in DKA requires continuous monitoring of serum potassium; insulin must be held if potassium falls below 3.3 mEq/L to prevent fatal arrhythmias.
Question 1507Question →

A nurse is monitoring a client 4 hours after a complex open abdominal surgery. The client's baseline preoperative vital signs were blood pressure 126/78 mm Hg, heart rate 72 beats/min, and respiratory rate 14 breaths/min. Which combination of current assessment findings provides the most definitive early indication of compensatory hypovolemic shock?

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Answer: Blood pressure 124/86 mm Hg, heart rate 104 beats/min, accompanied by new-onset restlessness and cool extremities

Answer

The correct answer is the finding of a narrowed pulse pressure (124/86 mm Hg), tachycardia (104 beats/min), restlessness, and cool extremities.
During the early (compensatory) stage of hypovolemic shock, the body's sympathetic nervous system activates to maintain perfusion to vital organs. This compensatory mechanism causes peripheral vasoconstriction, which results in cool extremities and an increased diastolic pressure (thereby narrowing the pulse pressure). Tachycardia occurs simultaneously to maintain cardiac output. Restlessness is often the very first neurological sign of slightly decreased cerebral oxygenation.

Step-by-Step Solution

1
Analyze the client's baseline preoperative vital signs.
Baseline blood pressure is 126/78 mm Hg (pulse pressure of 48) and heart rate is 72 beats/min.
Establishing the client's normal hemodynamic status allows for the detection of subtle, pathological postoperative trends.
2
Identify the physiological mechanisms of early (compensatory) hypovolemic shock.
The sympathetic nervous system activates to maintain cardiac output, leading to tachycardia, peripheral vasoconstriction, and an increased diastolic blood pressure.
Understanding compensatory mechanisms is necessary to differentiate actual shock from normal postoperative variations or medication side effects.
3
Evaluate the provided options against the recognized signs of compensatory shock.
The option presenting a blood pressure of 124/86 mm Hg (narrowed pulse pressure of 38), tachycardia (104 beats/min), restlessness, and cool extremities perfectly matches the compensatory phase.
Vasoconstriction shunts blood away from the skin, causing cool extremities, while decreased cerebral perfusion leads to early restlessness.

Key Concept

Early Indicators of Hypovolemic Shock
Question 1508Question →

A nurse is caring for a client who has just returned to the medical-surgical unit following a percutaneous liver biopsy. Which of the following interventions should the nurse include in the client's immediate plan of care to reduce the risk of post-procedure complications? Select all that apply.

Select all that apply

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Answer: Position the client on the right side with a small pillow under the puncture site.; Monitor vital signs every 15 minutes for the first hour.; Maintain the client on strict bed rest for the prescribed duration.

Answer

The correct interventions are positioning the client on the right side, monitoring vital signs every 15 minutes for the first hour, and maintaining strict bed rest.
Following a percutaneous liver biopsy, the highest priority is mitigating the risk of hemorrhage because the liver is a highly vascular organ. The correct interventions directly address this risk: placing the client on the right side applies direct, physical pressure to the puncture site to promote hemostasis; taking vital signs every 15 minutes allows the nurse to detect early signs of hypovolemic shock (such as a rising heart rate or dropping blood pressure); and maintaining strict bed rest prevents the disruption of the newly formed clot.

Step-by-Step Solution

1
Identify the primary risk associated with a percutaneous liver biopsy.
The liver is highly vascular, making hemorrhage the most significant immediate post-procedure complication.
Understanding the most likely complication directs the choice of preventative nursing interventions.
2
Evaluate each intervention for its ability to prevent or detect hemorrhage.
Right side-lying positioning applies pressure to the site; frequent vital signs detect early shock; bed rest prevents clot disruption.
Risk reduction relies on both mechanical prevention (pressure, rest) and early physiological detection (vital signs).
3
Eliminate contraindicated or unsafe interventions.
Delegating initial assessment to a UAP and placing the client in high Fowler's position are incorrect and unsafe actions.
Initial assessments must be performed by the RN, and proper positioning is crucial for physiological homeostasis.

Key Concept

Post-procedure care and risk reduction for a highly vascular organ biopsy.
Question 1509Question →

A nurse is caring for a client receiving a packed red blood cell (PRBC) transfusion. Fifteen minutes after the infusion begins, the client develops sudden chills, severe lower back pain, and dyspnea. Arrange the following nursing actions in the priority order they should be performed, from first action to last.

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Answer

The correct priority sequence is to first stop the transfusion, then maintain the IV line with normal saline using new tubing, followed by assessing the client's vital signs, notifying the healthcare provider and blood bank, and finally returning the blood products to the blood bank for testing.
In any acute physiological reaction to an intravenous infusion, the universal first step is to stop the infusion. Once stopped, IV access must be maintained with new tubing and normal saline to allow for emergency medication administration without infusing more of the offending agent. After securing the airway and circulation (ABCs), the nurse assesses the client to gather data, reports this data to the provider for orders, and finally addresses administrative and diagnostic protocols like returning the bag to the lab.

Step-by-Step Solution

1
Stop the blood transfusion immediately.
Halts the delivery of the offending blood product.
The client is exhibiting classic signs of an acute hemolytic transfusion reaction. The immediate priority is to limit the physiological insult by stopping the source.
2
Disconnect the blood tubing and infuse normal saline through new tubing.
Keeps the vein open and flushes the system safely.
Flushing through the old tubing would push more incompatible blood into the client. New tubing ensures only saline enters the bloodstream.
3
Assess the client's vital signs and respiratory status.
Establishes the severity of the client's physiological compromise.
Objective data (blood pressure, heart rate, oxygen saturation) is urgently needed to guide emergency pharmacological interventions.
4
Notify the healthcare provider and the blood bank.
Mobilizes the medical team and initiates the institutional reaction protocol.
Collaborative care is required to treat the systemic shock and renal complications associated with a hemolytic reaction.
5
Return the equipment to the blood bank.
Facilitates diagnostic testing.
The blood bank must analyze the product and tubing to identify the exact cause of the reaction, such as ABO incompatibility.

Key Concept

Management of Acute Hemolytic Transfusion Reactions
Question 1510Question →

A nurse is planning hygiene and comfort measures for a client with a severe traumatic brain injury and continuously monitored increased intracranial pressure (ICP). The client is mechanically ventilated and requires a full bed bath, linen change, and repositioning. Which of the following nursing interventions is the most appropriate?

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Answer: Coordinate with staff to log-roll the client, maintaining the head in neutral alignment, and provide rest periods between care activities.

Answer

The most appropriate action is to coordinate with staff to log-roll the client while maintaining the head in neutral alignment, and to provide rest periods between care activities.
The most appropriate intervention is to log-roll the client while maintaining the head and neck in a neutral, midline alignment. This position prevents the compression of the jugular veins, thereby optimizing venous return from the brain and helping to control intracranial pressure (ICP). Furthermore, spacing out nursing care activities (rather than clustering them) provides necessary rest periods, which prevents the cumulative, sustained spikes in ICP that often accompany prolonged stimulation.

Step-by-Step Solution

1
Analyze the client's clinical condition and priority risks.
The client has a severe traumatic brain injury with increased ICP and is mechanically ventilated. The primary risk is further elevating the ICP during routine care.
Nursing interventions, including basic hygiene and repositioning, can cause dangerous spikes in ICP if not performed with strict neurological precautions.
2
Evaluate the physiological impact of positioning and movement on ICP.
Neck flexion or rotation compresses jugular veins, impeding venous return. Prolonged or clustered nursing activities cause cumulative ICP increases.
Maintaining a neutral midline position and spacing care activities directly mitigates the physiological triggers of ICP elevation.
3
Select the intervention that safely accomplishes hygiene and comfort needs without compromising neurological stability.
Log-rolling with staff assistance ensures neutral alignment, and spacing activities prevents sustained ICP spikes.
This approach balances the client's need for basic care with the critical requirement of preventing secondary brain injury.

Key Concept

Basic care and comfort in clients with increased ICP requires maintaining a neutral, midline head position to optimize venous drainage and clustering care to avoid sustained ICP elevation.
Question 1511Question →

A nurse is caring for an adult client with a serum potassium level of 2.5 mEq/L2.5 \text{ mEq/L} who is prescribed 40 mEq40 \text{ mEq} of intravenous (IV) potassium chloride (KCl) to be administered via a peripheral IV line. Which action must the nurse take to ensure safe administration?

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Answer: Verify that the medication is administered via an electronic infusion pump at a maximum rate of 10 mEq/hr10 \text{ mEq/hr}.

Answer

The nurse must verify that the medication is administered via an electronic infusion pump at a maximum rate of 10 mEq/hr10 \text{ mEq/hr}.
Intravenous potassium chloride is a high-alert medication that must always be diluted and administered slowly. To prevent cardiac arrhythmias and severe venous irritation, the maximum recommended rate for peripheral IV administration is 10 mEq/hr10 \text{ mEq/hr}. Furthermore, it must always be administered using an electronic infusion pump to ensure precise and safe delivery.

Step-by-Step Solution

1
Identify the medication and the client's condition.
The client has severe hypokalemia (2.5 mEq/L2.5 \text{ mEq/L}) and requires IV potassium chloride (KCl).
Understanding the high-alert nature of IV potassium is the first step in ensuring patient safety.
2
Recall the critical safety guidelines for IV KCl administration.
IV KCl must never be given by IV push, must be adequately diluted, and must be infused at a maximum rate of 10 mEq/hr10 \text{ mEq/hr} via a peripheral line using an electronic pump.
Rapid infusion can lead to lethal cardiac arrhythmias.
3
Evaluate the provided options against safety standards and scope of practice.
Administering via an infusion pump at a maximum of 10 mEq/hr10 \text{ mEq/hr} is the only safe, evidence-based action.
Other options involve unsafe calculation/infusion rates, medication incompatibilities with blood products, or improper delegation of nursing duties.

Key Concept

Safe administration of intravenous potassium chloride (KCl)
Estimated Time:1m 30s
Question 1512Question →

A nurse is caring for a client who is 44 hours post-cardiac catheterization via the right femoral artery. The client begins reporting new, severe discomfort in the lower back and flank area, along with mild dizziness. Current vital signs reveal a blood pressure of 96/5496/54 mm Hg and a heart rate of 114114 beats per minute. The femoral insertion site dressing is completely dry and intact. Which action should the nurse take first to address the client's risk of physiological decompensation?

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Answer: Keep the client in a flat, supine position and immediately notify the healthcare provider.

Answer

The correct action is to keep the client in a flat, supine position and immediately notify the healthcare provider.
The client's presentation of severe back pain, hypotension, and tachycardia after a femoral artery procedure strongly indicates retroperitoneal bleeding. Because the blood is pooling internally, the external dressing remains clean and dry. The nurse must keep the client flat to avoid bending the groin, which could exacerbate the arterial bleed, and must immediately notify the provider to initiate emergency volume resuscitation and diagnostics.

Step-by-Step Solution

1
Analyze the client's clinical presentation and recent procedure.
The client had a right femoral artery puncture 44 hours ago and is now experiencing severe back/flank pain, hypotension (96/5496/54 mm Hg), and tachycardia (114114 bpm).
Identifying the relationship between the invasive procedure and the sudden change in vital signs is necessary to determine the underlying complication.
2
Correlate the symptoms with potential post-catheterization complications.
The combination of back pain, dropping blood pressure, and rising heart rate with a dry groin dressing points to internal retroperitoneal bleeding.
Blood from a femoral arterial leak can pool backward into the retroperitoneal space, hiding external signs of hemorrhage while producing signs of hypovolemic shock and referred back pain.
3
Select the nursing intervention that mitigates the immediate physiological risk.
The nurse must ensure the client remains flat to prevent bending at the groin and alert the provider to manage the hemorrhage.
Immediate medical intervention (such as fluid resuscitation or surgical repair) is required to prevent cardiovascular collapse, and positioning protects the clot.

Key Concept

Recognizing and mitigating the risk of retroperitoneal hemorrhage following femoral artery access.
Question 1513Question →

A nurse is monitoring an adult client who is receiving a transfusion of packed red blood cells for symptomatic anemia. Twenty minutes after the infusion begins, the client suddenly reports severe lower back pain, chills, and a sensation of chest tightness. In what order should the nurse perform the following interventions to minimize the client's risk of physiological deterioration?

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Answer

The correct sequence is: 1) Stop the blood transfusion immediately, 2) Disconnect the blood tubing and initiate an infusion of 0.9% sodium chloride using a new administration set, 3) Assess the client's vital signs, breath sounds, and urine output, 4) Notify the healthcare provider and the blood bank of the suspected reaction, and 5) Return the blood bag, attached administration set, and all labels to the blood bank.
An acute hemolytic transfusion reaction is a life-threatening emergency. The absolute priority is to stop the infusion of the incompatible blood. Next, intravenous access must be maintained to treat potential shock, which requires infusing 0.9% sodium chloride through a completely new administration set. Assessing the client follows immediately to gauge the severity of the reaction. With complete assessment data, the nurse then notifies the healthcare provider for emergency orders and contacts the blood bank. Finally, the blood bag and tubing are returned to the laboratory for diagnostic analysis.

Step-by-Step Solution

1
Stop the transfusion.
Further entry of incompatible blood into the circulation is halted.
This is the most critical immediate action to mitigate the physiological risk of a severe acute hemolytic reaction.
2
Maintain IV access with normal saline using new tubing.
The vein remains open for emergency medications and renal perfusion is supported.
Normal saline prevents hemolysis. New tubing ensures the blood remaining in the old line is not flushed into the client.
3
Assess the client.
Objective clinical data regarding hemodynamic and respiratory stability is obtained.
Assessment data is required to determine the severity of the reaction and to provide accurate information to the healthcare provider.
4
Notify the healthcare provider and blood bank.
Medical interventions are prescribed and the reaction investigation is initiated.
Collaborative care is necessary to manage potential shock or acute kidney injury resulting from the reaction.
5
Send materials to the blood bank.
The laboratory can analyze the blood and tubing for errors or incompatibilities.
This is a required protocol for all suspected transfusion reactions to identify the root cause.

Key Concept

Management of an acute hemolytic transfusion reaction requires immediate cessation of the blood product, maintenance of intravenous access with normal saline via new tubing, and rapid assessment to minimize physiological risk.
Question 1514Question →

An adult client is transferred to the neurology observation unit following a diagnostic lumbar puncture. Thirty minutes after arrival, the client complains of a severe, throbbing headache that intensifies noticeably whenever they attempt to sit upright. Vital signs reveal a blood pressure of 118/74118/74 mmHg, a heart rate of 7878 beats/min, and an oxygen saturation of 98%98\% on room air. Which intervention should the nurse prioritize to manage this post-procedure complication?

Show answer & explanation

Answer: Maintain the client in a strictly flat, supine position and promote increased oral fluid intake.

Answer

The nurse should maintain the client in a strictly flat, supine position and promote increased oral fluid intake.
The client is experiencing a post-dural puncture headache, which classically worsens when the head is elevated due to the leakage of cerebrospinal fluid (CSF) from the puncture site. Maintaining a flat, supine position reduces tension on the meninges and minimizes further CSF leakage. Increasing fluid intake helps replenish CSF volume and decreases symptom severity.

Step-by-Step Solution

1
Analyze the client's symptoms in the context of the recent procedure.
The client recently had a lumbar puncture and is now experiencing a headache that worsens upon sitting upright, which is the hallmark presentation of a post-dural puncture headache (spinal headache).
Identifying the specific post-procedure complication is necessary to guide the appropriate nursing intervention.
2
Determine the physiological cause of the complication.
A spinal headache is caused by the ongoing leakage of cerebrospinal fluid (CSF) from the dural puncture site, which decreases intracranial CSF volume and places downward traction on pain-sensitive meninges when the client is upright.
Understanding the etiology ensures the selected interventions will directly counteract the mechanism of injury.
3
Select the most appropriate conservative nursing intervention to mitigate the risk.
Keeping the client in a flat, supine position removes the gravitational pull on the meninges, and increasing fluid intake helps rebuild CSF volume.
Conservative, non-invasive nursing measures are the first-line treatment before escalating to invasive medical procedures.

Key Concept

Post-Lumbar Puncture Complication Management
Question 1515Question →

A nurse is closely monitoring a client who sustained blunt abdominal trauma in a motor vehicle collision 2 hours ago. The client's baseline vital signs upon admission were: blood pressure 138/76 mm Hg, heart rate 80 beats per minute, and respiratory rate 16 breaths per minute. Which of the following current vital sign profiles provides the strongest evidence that the client is experiencing early compensatory hypovolemic shock?

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Answer: Blood pressure 126/94 mm Hg, heart rate 112 beats per minute, respiratory rate 24 breaths per minute

Answer

The vital sign profile showing a blood pressure of 126/94 mm Hg, heart rate of 112 beats per minute, and respiratory rate of 24 breaths per minute is the correct answer.
The correct answer demonstrates a narrowed pulse pressure (32 mm Hg), tachycardia, and tachypnea. In early compensatory hypovolemic shock, the body's sympathetic nervous system initiates peripheral vasoconstriction to maintain cardiac output. This vasoconstriction raises the diastolic pressure while the systolic pressure remains relatively stable or decreases slightly, resulting in a narrowed pulse pressure. This is the earliest reliable cardiovascular indicator of shock.

Step-by-Step Solution

1
Calculate the baseline pulse pressure and evaluate the initial vital signs.
The baseline blood pressure is 138/76 mm Hg, yielding a pulse pressure of 62 mm Hg (138 - 76). Heart rate and respiratory rate are within normal limits.
Establishing a baseline is essential to identify the subtle physiological shifts that occur during the early stages of clinical deterioration.
2
Identify the pathophysiological mechanisms of early compensatory hypovolemic shock.
During the compensatory stage, the sympathetic nervous system activates, leading to peripheral vasoconstriction, increased heart rate, and increased respiratory rate.
Vasoconstriction primarily raises the diastolic blood pressure. Because compensatory mechanisms temporarily maintain the systolic blood pressure, the pulse pressure narrows.
3
Analyze each option to find the profile that matches the compensatory phase.
The profile with a blood pressure of 126/94 mm Hg has a narrowed pulse pressure of 32 mm Hg. Combined with tachycardia (112) and tachypnea (24), it perfectly reflects early compensation.
A significant drop in systolic blood pressure (e.g., 94/56 mm Hg) indicates that compensatory mechanisms have failed (progressive shock), whereas a narrowed pulse pressure indicates they are actively working.

Key Concept

In early compensatory hypovolemic shock, sympathetic nervous system activation causes peripheral vasoconstriction, leading to an elevated diastolic blood pressure, a maintained systolic blood pressure, and a narrowed pulse pressure, alongside mild tachycardia and tachypnea.
Question 1516Question →

A client admitted with acute decompensated heart failure is receiving a continuous intravenous (IV) infusion of milrinone through a single peripheral IV catheter. The healthcare provider prescribes a stat dose of furosemide via IV push. The nurse consults a drug compatibility reference and notes that furosemide and milrinone are incompatible. Which of the following is the priority nursing action?

Show answer & explanation

Answer: Establish a second peripheral IV access site to administer the furosemide.

Answer

Establish a second peripheral IV access site to administer the furosemide.
Establishing a second IV site is the only safe option because furosemide and milrinone are incompatible and cannot share a line, and milrinone is a critical vasoactive infusion that must not be interrupted.

Step-by-Step Solution

1
Analyze the prescription and current therapy
The client requires a stat dose of furosemide but is receiving a continuous infusion of milrinone.
Understanding the concurrent medication requirements is the first step in safe administration.
2
Evaluate drug compatibility
Furosemide and milrinone are incompatible and cannot be mixed in the same IV tubing.
Preventing precipitation and embolus formation ensures patient safety.
3
Determine the feasibility of interrupting the primary infusion
Milrinone is a continuous inotropic medication that supports cardiac output; it cannot be safely paused.
Interrupting life-sustaining vasoactive infusions leads to rapid hemodynamic decompensation.
4
Identify the safest alternative
A new, separate IV access site must be established.
This allows both the continuous inotrope to run uninterrupted and the stat diuretic to be given safely.

Key Concept

Management of Incompatible Intravenous Medications and Continuous Vasoactive Infusions
Question 1517Question →

A client with a complete spinal cord injury at the T4T4 level suddenly reports a severe, throbbing headache, blurred vision, and profound nasal congestion. The client's blood pressure is 218/114218/114 mm Hg, and the heart rate is 5252 beats/min. To reduce the immediate risk of a catastrophic cerebrovascular complication, which action must the nurse perform first?

Show answer & explanation

Answer: Elevate the head of the bed to 9090 degrees and lower the client's legs.

Answer

The nurse must first elevate the head of the bed to 90 degrees and lower the client's legs.
The client is exhibiting classic signs of autonomic dysreflexia, a medical emergency in clients with spinal cord injuries at or above the T6T6 level. The massive sympathetic response causes severe hypertension, which poses an immediate risk of stroke or intracranial hemorrhage. The absolute first priority is to utilize gravity to induce orthostatic hypotension and reduce venous return, which rapidly lowers blood pressure. This is achieved by elevating the head of the bed to a sitting position (9090 degrees) and lowering the legs.

Step-by-Step Solution

1
Analyze the clinical manifestations and vital signs.
The severe hypertension, bradycardia, headache, and T4 spinal cord injury indicate autonomic dysreflexia.
Accurate identification of the physiological crisis dictates the emergency protocol.
2
Determine the immediate physiological threat.
The extreme hypertension (218/114218/114 mm Hg) poses a high risk for an acute cerebrovascular accident (stroke).
Prioritization must focus on mitigating the most lethal consequence immediately.
3
Select the fastest intervention to address the primary threat.
Elevating the head of the bed and lowering the legs is the priority action.
This utilizes orthostatic principles to instantly decrease venous return and lower systemic blood pressure before investigating the underlying trigger.

Key Concept

Autonomic dysreflexia management requires immediate positioning to induce orthostatic hypotension before investigating the noxious stimulus.
Question 1518Question →

A nurse is instructing a client with a right fractured tibia who is non-weight-bearing on how to ascend stairs using axillary crutches. In what order should the nurse teach the client to perform the following actions? Arrange the steps in the correct sequence from first to last.

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The correct sequence for ascending stairs with crutches is: establish a tripod stance, bear weight on the crutches, move the unaffected leg up, shift weight to the unaffected leg, and finally bring the crutches and affected leg up.
When ascending stairs with crutches (non-weight-bearing), the standard nursing principle is 'up with the good, down with the bad'. The client begins in a secure tripod stance and transfers their body weight to the crutches. The strong, unaffected leg steps up first to act as the primary lifter. The client then shifts their weight onto this strong leg, allowing them to safely bring the crutches and the affected, non-weight-bearing leg up to the same step.

Step-by-Step Solution

1
Identify the core principle for ascending stairs with crutches.
The general rule is 'up with the good, down with the bad', meaning the unaffected leg must advance first when going up.
This principle ensures the strong leg provides the lifting power.
2
Determine the initial positioning and weight transfer.
The client starts in a stable tripod stance and transfers their weight entirely to the crutches.
A tripod stance provides the necessary base of support, and weight must be off the unaffected leg so it can move.
3
Sequence the movement of limbs.
The unaffected leg steps up, weight is shifted to it, and then the crutches and the affected leg are lifted together.
This maintains the non-weight-bearing status on the injured leg while safely elevating the body.

Key Concept

Assistive Devices: Crutch Walking on Stairs
Question 1519Question →

While performing an hourly clinical assessment, a critical care nurse evaluates the peripheral intravenous site of a client receiving a continuous norepinephrine infusion. The surrounding skin appears blanched, edematous, and cool to the touch. The client reports intense burning in the arm. Which intervention is the most appropriate initial action?

Show answer & explanation

Answer: Halt the infusion immediately while leaving the intravenous catheter intact in the vein.

Answer

The most appropriate initial action is to halt the infusion immediately while leaving the intravenous catheter intact in the vein.
The client is experiencing extravasation of a vesicant (norepinephrine), which causes profound vasoconstriction and tissue necrosis. The immediate priority is to stop the flow of the harmful medication. The catheter must remain in place to allow for the aspiration of residual drug and the local administration of an antidote, such as phentolamine, directly into the infiltrated tissue.

Step-by-Step Solution

1
Assess the clinical signs at the peripheral intravenous site.
The blanching, edema, coolness, and severe pain indicate extravasation of a vesicant medication.
Norepinephrine is a potent vasoconstrictor and vesicant; its leakage into surrounding tissue causes severe ischemia and necrosis.
2
Determine the highest priority nursing intervention.
The infusion must be stopped immediately.
Halting the infusion prevents further vesicant from entering the subcutaneous tissue, mitigating the extent of the injury.
3
Maintain the intravenous access.
The catheter is left in place.
Retaining the catheter allows the nurse to aspirate residual medication from the line and provides a route to instill an antidote (e.g., phentolamine) directly into the affected area.

Key Concept

Management of Vesicant Extravasation
Question 1520Question →

A nurse is assessing a client who is two days postoperative following a right total knee arthroplasty. The client suddenly becomes severely restless and reports sharp, pleuritic chest pain. Which of the following assessment findings would indicate that the client has developed a pulmonary embolism complicated by obstructive shock? Select all that apply.

Select all that apply

Show answer & explanation

Answer: Arterial blood gas showing a pH of 7.51, PaCO2 of 28 mm Hg, and PaO2 of 56 mm Hg; Blood pressure decreasing from a baseline of 128/82 mm Hg to 84/50 mm Hg; Heart rate of 132 beats per minute accompanied by a weak, thready pulse

Answer

The assessment findings indicating a pulmonary embolism with obstructive shock are the arterial blood gas showing respiratory alkalosis and hypoxemia, the significant drop in blood pressure, and the tachycardia with a weak, thready pulse.
A massive pulmonary embolism creates an acute obstruction in the pulmonary vasculature, severely limiting blood flow to the left side of the heart. This precipitous drop in left ventricular preload and cardiac output defines obstructive shock, which presents with profound hypotension, compensatory tachycardia, and a weak, thready pulse due to decreased stroke volume and peripheral vasoconstriction. Concurrently, the obstruction creates a severe ventilation-perfusion mismatch, resulting in hypoxemia. The body's natural response to this hypoxia, along with severe pain and anxiety, is hyperventilation, which drives down carbon dioxide levels and causes respiratory alkalosis.

Step-by-Step Solution

1
Analyze the clinical scenario and the client's risk factors.
The client is postoperative from major orthopedic surgery, which is a high risk factor for deep vein thrombosis and subsequent pulmonary embolism (PE). The sudden onset of pleuritic chest pain and restlessness strongly suggests an acute PE.
Identifying the primary pathophysiological event is essential to anticipate the resulting hemodynamic and respiratory changes.
2
Evaluate the respiratory parameters and arterial blood gas (ABG) findings.
A PE blocks pulmonary blood flow, causing a ventilation-perfusion mismatch and leading to hypoxia (low PaO2). The client hyperventilates in response, exhaling excess carbon dioxide and causing respiratory alkalosis (high pH, low PaCO2).
Understanding the acid-base imbalance helps distinguish between different types of respiratory distress.
3
Evaluate the hemodynamic parameters for signs of obstructive shock.
A massive PE creates a physical obstruction that severely reduces left ventricular filling and cardiac output. This manifests as significant hypotension and a compensatory tachycardia. Due to intense peripheral vasoconstriction and low stroke volume, the pulse becomes weak and thready, and the pulse pressure narrows.
Differentiating the types of shock ensures accurate assessment. Findings of widened pulse pressure or warm extremities would indicate distributive shock, not obstructive shock.

Key Concept

Clinical Manifestations of Pulmonary Embolism and Obstructive Shock
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