Physiological Integrity

1960 questions

Question 61Question →

A nurse is caring for a client who is receiving a packed red blood cell (PRBC) transfusion. Fifteen minutes after the infusion begins, the client suddenly reports severe lower back pain, chills, and shortness of breath. What is the priority sequence of nursing actions to minimize the risk of further physiological deterioration? Arrange the steps in the correct chronological order.

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Answer

The correct priority sequence is to first stop the transfusion immediately, then maintain IV access with normal saline using new tubing, assess the client's vital signs, notify the provider and blood bank, and finally return the materials to the blood bank for analysis.
In the event of a suspected acute hemolytic transfusion reaction (indicated by lower back pain, chills, and shortness of breath), the overarching priority is risk reduction through immediately stopping the source of harm. Once the transfusion is stopped, maintaining a patent IV line with normal saline and completely new tubing is essential for administering emergency medications. Only after stabilizing the IV line should the nurse assess the client fully, followed by notifying the provider and blood bank to initiate emergency orders and investigations based on the assessment findings. Finally, the remaining blood and tubing are returned to the blood bank for procedural analysis.

Step-by-Step Solution

1
Stop the blood transfusion immediately.
The infusion of the incompatible blood product is halted.
This is the most critical step to prevent further incompatible cells from entering the client's circulation, mitigating the risk of cardiovascular collapse.
2
Disconnect the blood tubing and initiate 0.9% sodium chloride using new tubing.
Patency of the intravenous line is maintained without administering more blood.
Vascular access is needed for emergency drugs. New tubing must be used to prevent flushing residual reactive blood from the old tubing into the client.
3
Assess the client's vital signs and respiratory status.
The nurse obtains baseline data on the severity of the acute reaction.
This information is necessary to communicate the client's current physiological state to the healthcare provider so they can prescribe appropriate interventions.
4
Notify the healthcare provider and the blood bank.
The medical team is alerted to the adverse event.
The provider will prescribe interventions (e.g., epinephrine, fluids, antihistamines, corticosteroids), and the blood bank must initiate a transfusion reaction protocol.
5
Return the blood bag, attached tubing, and labels to the blood bank.
The physical evidence of the transfusion is sent for laboratory analysis.
This allows the blood bank to type and crossmatch the blood again to identify the specific error or unexpected antibody.

Key Concept

Management of Acute Hemolytic Transfusion Reactions
Question 62Question →

A nurse is managing the care of a 78-year-old client who is in balanced suspension skeletal traction following a comminuted right femur fracture. The client, who has a history of osteoarthritis, reports a new onset of dull, aching pain in the right heel and increasing stiffness in the lower back. Which of the following nursing actions is the most appropriate?

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Answer: Place a rolled towel under the right calf to suspend the heel off the bed and encourage the use of the overhead trapeze bar for repositioning.

Answer

The correct action is to place a rolled towel under the right calf to suspend the heel off the bed and encourage the use of the overhead trapeze bar for repositioning.
Placing a rolled towel under the calf successfully 'floats' the heel, entirely removing the pressure that is causing the ischemic ache. Additionally, utilizing the overhead trapeze bar allows the client to lift their upper body and buttocks off the mattress. This safely relieves pressure on the sacrum and lower back without changing the angle of the bed or disrupting the continuous pull of the traction weights.

Step-by-Step Solution

1
Assess the source and implication of the client's reported heel and lower back pain.
The nurse identifies the dull heel ache as an early sign of a pressure injury and the back stiffness as a complication of immobility.
Continuous pressure on bony prominences during bedrest leads to tissue ischemia, which presents as pain or aching before skin breakdown becomes visible.
2
Determine the constraints of providing comfort measures while maintaining balanced suspension skeletal traction.
The nurse recognizes that the head of the bed cannot be elevated above 20 to 30 degrees, and traction weights must never be removed, lifted, or supported.
Altering the bed angle significantly or relieving weight tension disrupts the continuous therapeutic pull required for proper fracture alignment and healing.
3
Select an appropriate intervention that relieves pressure without violating traction principles.
The nurse floats the heel using a rolled towel under the calf and instructs the client to independently shift their weight using the trapeze bar.
This provides effective basic care and comfort, safely relieving sacral and heel pressure while preserving the exact orthopedic alignment required.

Key Concept

Basic Care and Comfort in Skeletal Traction
Question 63Question →

An 81-year-old client with bulbar amyotrophic lateral sclerosis (ALS) is admitted for treatment of aspiration pneumonia. The client has a newly inserted percutaneous endoscopic gastrostomy (PEG) tube for continuous enteral feeding, a Stage II sacral pressure injury, and exhibits intermittent periods of profound disorientation. Which nursing interventions are appropriate for this client's basic care and comfort? Select all that apply.

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Answer: Ensure the upper body remains inclined at a 30-degree to 45-degree angle during active administration of the prescribed enteral nutrition.; Position the client using a 30-degree lateral tilt, alternating between the left and right sides, to alleviate direct mechanical pressure on the sacral region.

Answer

The correct interventions are maintaining the upper body at a 30-to-45-degree angle during feedings and utilizing a 30-degree lateral tilt to offload sacral pressure.
Clients receiving continuous enteral nutrition are highly susceptible to aspiration; keeping the upper body elevated at 30 to 45 degrees utilizes gravity to reduce this risk. Furthermore, for clients with existing sacral pressure injuries, a 30-degree lateral tilt is the optimal, evidence-based position to offload direct pressure from the bony prominences of the coccyx while avoiding the excessive trochanteric pressure caused by full 90-degree side-lying.

Step-by-Step Solution

1
Analyze the client's clinical profile and associated risks.
The client has a high risk for aspiration (bulbar ALS, previous aspiration pneumonia, continuous PEG feeding), impaired tissue integrity (Stage II sacral injury), and acute confusion.
Identifying overlapping acute and chronic issues dictates the prioritization of safe basic care interventions.
2
Evaluate interventions related to enteral feeding safety.
Positioning the client at a 30-45 degree angle is standard safe practice to prevent aspiration. Lowering the bed to a flat position without stopping the continuous infusion is highly contraindicated.
Gravity is necessary to prevent reflux of enteral formula from the stomach into the esophagus and airway.
3
Determine the appropriate intervention for the sacral pressure injury.
A 30-degree lateral tilt alternates pressure off the sacrum without causing new pressure injuries on the hip bones, making it the optimal evidence-based positioning strategy.
Traditional 90-degree side-lying positions create intense pressure over the trochanter, exacerbating skin breakdown rather than preventing it.
4
Critique the remaining options regarding delegation, safety, and cognitive assessment.
UAP cannot evaluate wounds, restraints are a last resort (not an immediate solution), and sudden confusion is a pathological symptom, not normal aging.
Nursing care must adhere to legal scopes of practice, prioritize least-restrictive safety environments, and accurately distinguish between senescence and acute disease processes.

Key Concept

Basic Care and Comfort: Positioning, Skin Integrity, and Safe Care Environment
Question 64Question →

A nurse is planning care for an older adult client who is on strict bed rest due to severe generalized weakness. Which of the following interventions should the nurse include in the client's plan of care? Select all that apply.

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Answer: Place a pillow between the client's knees and ankles when turning them to a side-lying position; Apply a moisture-barrier ointment to the perineal skin after cleansing following an incontinence episode

Answer

The correct interventions are placing a pillow between the knees and ankles when side-lying, and applying a moisture-barrier ointment to the perineal skin.
Appropriate basic care for an immobile older adult prioritizes the prevention of pressure injuries and the maintenance of skin integrity. Placing a pillow between the knees and ankles when the client is side-lying prevents bony prominences from rubbing together, which reduces friction and pressure. Applying a moisture-barrier ointment after incontinence protects the epidermis from maceration and chemical irritation.

Step-by-Step Solution

1
Identify the primary risks for an older adult client on strict bed rest.
The client is at high risk for skin breakdown, pressure injuries, and joint contractures.
Immobility limits circulation to dependent areas and causes continuous pressure on bony prominences.
2
Select interventions that directly mitigate these risks while adhering to nursing scope of practice.
Pillows between joints prevent friction, and moisture barriers prevent maceration. Both are essential basic care actions.
These proactive measures maintain physiological integrity without violating safety or delegation guidelines.

Key Concept

Basic care and comfort principles for immobile clients focus on maintaining skin integrity, preventing pressure injuries, and promoting proper body alignment.
Estimated Time:1m 0s
Question 65Question →

A nurse is removing a non-tunneled central venous access device (CVAD) from a client's right subclavian vein. Immediately after the catheter is withdrawn, the client exhibits sudden, severe dyspnea, diaphoresis, and a loud, continuous "churning" murmur over the precordium. To mitigate the risk of fatal hemodynamic collapse, arrange the following nursing actions in the priority order they should be performed. (Place the first action at the top and the last action at the bottom.)

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Answer

The correct priority sequence is: 1) Occlude the insertion site, 2) Position the client in left lateral Trendelenburg, 3) Administer 100% oxygen, 4) Activate the rapid response team, and 5) Ensure availability of the emergency crash cart.
An air embolism is a critical complication characterized by sudden respiratory distress and a 'mill wheel' (churning) murmur. The highest priority is to stop the entry of air by sealing the site. Following this, the left lateral Trendelenburg position uses gravity to keep the air bubble away from the right ventricular outflow tract. Administering oxygen is next to combat hypoxia and shrink the embolus. Once the client is temporarily protected from immediate death, calling for emergency assistance and preparing for a potential code are the next logical steps.

Step-by-Step Solution

1
Occlude the insertion site immediately with an occlusive dressing.
Further entrainment of air into the venous circulation is halted.
Air embolism is driven by negative intrathoracic pressure pulling air into the unsealed vein tract. Stopping the source is the single most critical intervention.
2
Place the client in the left lateral Trendelenburg position.
The air bubble is mechanically trapped in the right atrium and the apex of the right ventricle.
This prevents the air from advancing into the pulmonary vasculature, which would block blood flow to the lungs and cause immediate cardiovascular collapse.
3
Administer 100% oxygen via a non-rebreather mask.
Systemic hypoxia is mitigated and the size of the air embolus begins to decrease.
High-flow oxygen facilitates nitrogen washout from the embolus, accelerating its resorption into the bloodstream.
4
Activate the facility's rapid response team.
Advanced care providers are mobilized to the client's bedside.
After the nurse has stabilized the immediate physiological threat, medical intervention is required for definitive care (e.g., inotropes, potential aspiration of air).
5
Ensure immediate availability of the emergency crash cart.
Resuscitation equipment is placed on standby.
Despite initial interventions, a massive air embolism has a high risk of progressing to cardiac arrest, requiring immediate defibrillation and advanced airway management.

Key Concept

Management of a suspected air embolism requires immediate source control (occlusion), specific physiological positioning (left lateral Trendelenburg) to prevent pulmonary outflow obstruction, and rapid oxygenation before delaying care to summon help.
Question 66Question →

A nurse is developing a plan of care for a client who is 2 hours postoperative following a total thyroidectomy. Which of the following nursing actions are appropriate to reduce the risk of postoperative complications? Select all that apply.

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Answer: Maintain the client in a semi-Fowler's position with pillows supporting the head and neck.; Keep a tracheostomy tray, suction equipment, and supplemental oxygen readily available at the bedside.; Ask the client to speak briefly every 1 to 2 hours to monitor for changes in voice quality.

Answer

The appropriate actions include maintaining a semi-Fowler's position with neck support, keeping emergency airway equipment at the bedside, and assessing voice quality frequently.
The correct actions actively prevent or prepare for life-threatening complications. Semi-Fowler's positioning minimizes airway edema and suture tension. Bedside emergency equipment ensures immediate readiness for airway obstruction. Periodic voice assessments effectively monitor for laryngeal nerve damage.

Step-by-Step Solution

1
Identify the surgical procedure and its specific high-risk complications.
A total thyroidectomy carries significant risks of airway obstruction, hemorrhage, hypocalcemia, and laryngeal nerve damage.
Anticipating specific surgical complications is the foundation of effective risk reduction.
2
Evaluate positioning strategies for the post-thyroidectomy client.
Semi-Fowler's position is indicated; the supine position is contraindicated.
Elevating the head reduces neck edema, and supporting the neck prevents tension on the surgical incision.
3
Determine appropriate assessment and monitoring responsibilities.
The nurse must monitor early signs of shock (tachycardia) rather than late signs (hypotension), and must independently assess the surgical site.
Early recognition prevents severe physiological decompensation, and clinical assessments cannot be delegated to assistive personnel.

Key Concept

Reduction of Risk Potential: Postoperative Complications
Estimated Time:1m 30s
Question 67Question →

A nurse is caring for a client who underwent a percutaneous coronary intervention (PCI) via the right femoral artery 3 hours ago. The client's current vital signs are: blood pressure 104/62 mmHg (baseline 128/78 mmHg) and heart rate 102 bpm (baseline 76 bpm). The client reports new-onset moderate right flank pain. Which of the following is the most appropriate initial nursing action?

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Answer: Assess the client's retroperitoneal area for firmness or ecchymosis and maintain strict supine positioning.

Answer

The most appropriate initial action is to assess the client's retroperitoneal area for firmness or ecchymosis and maintain strict supine positioning.
The client's decreasing blood pressure, increasing heart rate, and new-onset flank pain strongly suggest retroperitoneal bleeding, a life-threatening complication of femoral artery access. The immediate priority is to assess for further signs of bleeding (such as ecchymosis or a hematoma) while keeping the client strictly supine to prevent tension on the arterial puncture site.

Step-by-Step Solution

1
Analyze the client's clinical presentation.
The client exhibits hypotension, tachycardia, and new flank pain following a femoral artery catheterization.
These findings are classic indicators of retroperitoneal hemorrhage, a serious complication of femoral access.
2
Determine the safest and most effective immediate intervention.
The nurse must visually and physically assess for internal bleeding while keeping the affected extremity straight and flat.
Early identification of retroperitoneal bleeding allows for rapid risk mitigation, and keeping the client flat prevents disruption of the arterial puncture site.

Key Concept

Early recognition and risk mitigation of retroperitoneal hemorrhage following femoral artery catheterization.
Question 68Question →

A nurse is removing a central venous catheter from a client's subclavian vein. Immediately after the catheter is withdrawn, the client suddenly gasps for air, reports sharp chest pain, and becomes severely dyspneic and pale. Suspecting an air embolism, arrange the following nursing actions in the priority order they should be performed to reduce the risk of a fatal cardiopulmonary complication.

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Answer

The correct priority sequence is: first, apply a sterile occlusive dressing; second, position the client in the left lateral Trendelenburg position; third, administer 100% oxygen; fourth, activate the rapid response system; and finally, initiate continuous monitoring.
In the event of a suspected air embolism during central line removal, the nurse's immediate goal is risk reduction through sequential mechanical and physiological interventions. Applying an occlusive dressing stops further air entrainment. The left lateral Trendelenburg position then traps the air in the right ventricle, preventing a catastrophic pulmonary artery occlusion. High-flow oxygen is administered to treat tissue hypoxia and accelerate nitrogen resorption from the embolus. Only after these immediate, life-saving bedside steps are taken should the nurse activate the rapid response team, followed by continuous hemodynamic monitoring to evaluate the client's status.

Step-by-Step Solution

1
Apply a sterile occlusive dressing firmly over the insertion site.
Further air entry into the venous system is immediately halted.
Every second the site remains open allows more air to be entrained, rapidly worsening the embolus. Stopping the source is the immediate mechanical priority.
2
Place the client in the left lateral Trendelenburg position.
The air embolus is trapped in the apex of the right ventricle.
This specific position utilizes gravity to prevent the air from migrating into the pulmonary artery, which would cause an infarction and cardiopulmonary collapse.
3
Administer 100% oxygen via a non-rebreather mask.
Hypoxia is addressed and the size of the nitrogen-based air bubble begins to shrink.
High-flow oxygen creates a diffusion gradient that accelerates the resorption of nitrogen gas from the embolus into the bloodstream while treating tissue ischemia.
4
Activate the rapid response system and notify the healthcare provider.
Advanced medical assistance and diagnostic support are summoned to the bedside.
After stabilizing the client with immediate nursing interventions, advanced medical care is required for definitive treatment.
5
Initiate continuous monitoring of vital signs and oxygen saturation.
The client's physiological status is closely observed for further decompensation.
Ongoing assessment evaluates the effectiveness of the initial interventions and guides further resuscitation efforts by the medical team.

Key Concept

Emergency management and risk reduction of a central line-associated air embolism.
Question 69Question →

During the immediate postoperative period following a coronary artery bypass grafting (CABG) procedure, the client's mediastinal chest tube drainage abruptly stops. The client becomes increasingly restless and diaphoresis is noted. Which of the following subsequent clinical findings support a developing complication of cardiac tamponade? Select all that apply.

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Answer: Paradoxical blood pressure drop of 15 mm Hg during inspiration; Distant, muffled heart tones upon auscultation; Jugular venous distention while the head of the bed is elevated at 45 degrees

Answer

The clinical findings that support a diagnosis of cardiac tamponade are a paradoxical blood pressure drop of 15 mm Hg during inspiration, distant and muffled heart tones, and jugular venous distention.
Cardiac tamponade is an acute obstructive shock state caused by fluid accumulation in the pericardium. It restricts ventricular filling, leading to a drop in systolic blood pressure during inspiration greater than 10 mm Hg (pulsus paradoxus). The fluid insulates the heart, causing muffled heart tones. Furthermore, elevated right-sided heart pressures back up into the systemic circulation, causing jugular venous distention.

Step-by-Step Solution

1
Analyze the clinical scenario of abrupt chest tube cessation after open-heart surgery.
The abrupt cessation suggests that blood is no longer draining and is instead accumulating in the pericardial space.
Retained blood in the mediastinum can quickly compress the heart muscle, severely restricting ventricular filling.
2
Identify the classic physiological indicators of an obstructive shock state.
The nurse must recognize the components of Beck's triad (hypotension, muffled heart sounds, jugular venous distention) alongside pulsus paradoxus.
These specific signs directly reflect the mechanical compression of the heart and the subsequent backup of systemic venous return.
3
Differentiate the expected findings from incorrect compensatory mechanisms.
Confirm pulsus paradoxus, muffled tones, and JVD. Reject widening pulse pressure, bradycardia, and metabolic alkalosis.
Shock induces compensatory tachycardia (not bradycardia), a narrowing pulse pressure (not widening), and metabolic acidosis due to tissue hypoxia (not alkalosis).

Key Concept

Cardiac Tamponade and Obstructive Shock
Question 70Question →

A client on a medical-surgical unit is receiving an infusion of packed red blood cells (PRBCs) for symptomatic anemia. Ten minutes after the transfusion begins, the client reports sudden severe lower back pain, dyspnea, and chills. The nurse notes visible flushing and shivering. Place the following nursing interventions in the correct order of priority. (Arrange from first action to last action.)

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Answer

The correct sequence of actions for a suspected blood transfusion reaction is: 1) Stop the blood transfusion immediately. 2) Change the IV tubing and infuse 0.9% sodium chloride. 3) Assess the client's vital signs and clinical status. 4) Notify the primary healthcare provider and the blood bank. 5) Return the blood bag, attached tubing, and labels to the blood bank.
In any adverse transfusion reaction, the absolute first priority is to remove the source of harm (stop the transfusion). The second priority is to maintain an open venous access line for emergency medications using entirely new tubing and normal saline. Assessing the client follows securing the line, providing the necessary clinical data to report to the healthcare provider. The provider is then notified, and finally, administrative and diagnostic protocols such as returning the blood to the lab are completed.

Step-by-Step Solution

1
Stop the transfusion immediately.
Halts the entry of incompatible blood into the client's systemic circulation.
Continuing the transfusion exacerbates the acute hemolytic reaction, increasing the risk of cardiovascular collapse and acute kidney injury.
2
Change IV tubing and run normal saline.
Maintains intravenous access without flushing the remaining blood product into the client.
If the existing tubing is used to flush normal saline, the client will receive the blood left in the line. A new line ensures safe access for emergency drugs.
3
Assess the client's vital signs and respiratory status.
Gathers objective data regarding the client's hemodynamic stability.
The nurse must have current vital signs (e.g., blood pressure, oxygen saturation) and clinical findings to accurately report the client's condition to the provider.
4
Notify the healthcare provider and blood bank.
Triggers medical intervention and laboratory investigation.
The provider will prescribe necessary emergency interventions, and the blood bank must initiate their transfusion reaction protocols.
5
Return the blood products and tubing to the blood bank.
Preserves the physical evidence of the reaction.
The blood bank must test the bag, tubing, and labels to determine if there was a crossmatching error or bacterial contamination.

Key Concept

Management of acute hemolytic transfusion reactions requires immediate cessation of the blood product, maintaining a patent IV with new tubing, and comprehensive client assessment before provider notification.
Question 71Question →

A client is recovering 24 hours post-operatively following an emergency repair of a ruptured abdominal aortic aneurysm. Due to significant intraoperative blood loss, the client required massive fluid and blood product resuscitation. The nurse assesses the client and notes a tensely distended abdomen, a sudden decrease in urine output to 12 mL/hr, and increasing peak inspiratory pressures on the mechanical ventilator. Current hemodynamic monitoring reveals a blood pressure of 84/46 mm Hg, a heart rate of 128 beats/min, and a central venous pressure (CVP) of 18 mm Hg. Which of the following is the nurse's MOST appropriate initial action?

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Answer: Measure the client's intra-abdominal pressure using the indwelling urinary catheter.

Answer

The nurse should measure the intra-abdominal pressure using the indwelling urinary catheter.
The client's clinical presentation is the classic triad of Abdominal Compartment Syndrome (ACS): a tense abdomen, oliguria, and increased peak airway pressures following massive fluid resuscitation. The severe intra-abdominal edema increases intra-abdominal pressure, which pushes upward against the diaphragm (causing high peak airway pressures) and compresses the vena cava and renal veins (causing decreased venous return, hypotension, tachycardia, and oliguria). The increased intrathoracic pressure falsely elevates the central venous pressure (CVP). The priority initial nursing action is to objectively measure the intra-abdominal pressure, typically done by instilling sterile saline into the bladder via an indwelling catheter and connecting it to a pressure transducer, to confirm the diagnosis.

Step-by-Step Solution

1
Analyze the client's multi-system clinical presentation.
The client has a tense abdomen, oliguria (12 mL/hr), high peak inspiratory pressures, hypotension (84/46 mm Hg), tachycardia (128 beats/min), and an elevated CVP (18 mm Hg) following massive fluid resuscitation.
Identifying abnormal and seemingly contradictory findings is the first step in advanced clinical reasoning.
2
Correlate the findings with a unifying pathophysiological mechanism.
Massive fluid resuscitation leads to severe bowel edema. The resulting increased intra-abdominal pressure compresses the renal veins (causing oliguria) and the inferior vena cava (decreasing venous return, leading to hypotension and tachycardia). It also pushes the diaphragm upward, causing high peak airway pressures and falsely elevating intrathoracic pressure (creating a high CVP artifact).
Connecting these specific respiratory, renal, and hemodynamic symptoms identifies Abdominal Compartment Syndrome (ACS).
3
Determine the priority diagnostic or therapeutic intervention.
Before definitive surgical decompression (laparotomy) can be performed, the nurse must confirm the diagnosis by objectively measuring the intra-abdominal pressure via the urinary bladder.
Measuring intra-abdominal pressure is the gold-standard initial diagnostic action for suspected ACS.

Key Concept

Abdominal Compartment Syndrome (ACS) Pathophysiology and Assessment
Question 72Question →

A client hospitalized with a massive pulmonary embolism is receiving a continuous intravenous infusion of unfractionated heparin through a single-lumen peripheral catheter. The client develops a systemic bloodstream infection, and the healthcare provider prescribes an intermittent intravenous infusion of vancomycin to run over 90 minutes. Upon consulting the facility's parenteral drug reference, the nurse notes that heparin and vancomycin are physically incompatible. Which action represents the safest nursing practice in this situation?

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Answer: Insert a second peripheral intravenous catheter to administer the vancomycin infusion.

Answer

The safest nursing action is to establish a second peripheral intravenous catheter to administer the vancomycin independently.
The safest approach when administering an incompatible prolonged intermittent infusion (such as a 90-minute vancomycin dose) to a client receiving a critical, short-acting continuous infusion (such as heparin for a pulmonary embolism) is to obtain a second intravenous access site. Heparin has a very short half-life (60 to 90 minutes). Pausing it for the duration of the vancomycin infusion would cause the client's activated partial thromboplastin time (aPTT) to drop well below the therapeutic range, dangerously increasing the risk of pulmonary embolism extension. Therefore, both medications must run concurrently through completely separate vascular access lines.

Step-by-Step Solution

1
Identify the critical nature of the continuous heparin infusion.
Recognize that heparin is actively treating a life-threatening pulmonary embolism and has a very short pharmacokinetic half-life.
Continuous anticoagulation must be strictly maintained to prevent further clot extension.
2
Analyze the compatibility conflict and the duration of the secondary medication.
Heparin and vancomycin cannot mix in the same line, and the vancomycin infusion will take 90 minutes to complete.
Mixing them causes physical incompatibility, and pausing the heparin for 90 minutes would cause blood levels to drop below the therapeutic range.
3
Determine the safest administration route.
A second intravenous access point is required.
This allows both the critical continuous infusion and the necessary prolonged antibiotic infusion to run simultaneously and safely.

Key Concept

Management of Intravenous Incompatibilities with High-Alert Continuous Infusions
Estimated Time:1m 30s
Question 73Question →

An adult client who underwent a diagnostic lumbar puncture four hours ago is now complaining of a severe, throbbing headache that worsens upon sitting. When planning interventions to promote comfort and safety, which action should the nurse implement?

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Answer: Keep the client in a flat, supine position while offering frequent oral fluids.

Answer

Keep the client in a flat, supine position while offering frequent oral fluids.
Post-lumbar puncture headaches are frequently caused by the leakage of cerebrospinal fluid from the dural puncture site. Keeping the client in a flat position minimizes this leakage and decreases the gravitational pull on the pain-sensitive meninges. Furthermore, encouraging oral fluid intake helps to actively replenish the lost cerebrospinal fluid volume, directly addressing the root cause of the client's discomfort.

Step-by-Step Solution

1
Analyze the client's clinical presentation.
The client has a severe, throbbing headache that worsens when sitting up, four hours after a lumbar puncture.
Identifying the timing and characteristics of the symptom points to a post-dural puncture headache caused by cerebrospinal fluid leakage.
2
Determine the appropriate physiological intervention for a post-lumbar puncture headache.
The standard intervention is keeping the client flat and increasing hydration.
Lying flat reduces tension on the meninges by preventing gravity-induced downward displacement of the brain, while hydration helps restore cerebrospinal fluid volume.
3
Evaluate the other proposed nursing actions for safety and efficacy.
Elevating the head worsens the pain, delegating assessment is unsafe, and false reassurance is non-therapeutic.
Nursing actions must align with safety guidelines, proper delegation boundaries, and therapeutic communication standards.

Key Concept

Post-Lumbar Puncture Comfort and Positioning
Question 74Question →

During a routine assessment on the surgical unit, a nurse evaluates a client who underwent an open splenectomy earlier in the day. The client's spouse reports that the client has suddenly become restless and anxious. A review of the electronic health record reveals the following vital sign trends:

TimeBlood PressureHeart RateRespiratory RatePulse Oximetry
14:00134/72 mm Hg82 beats/min14 breaths/min99% on room air
15:00126/78 mm Hg94 beats/min18 breaths/min97% on room air
16:00112/86 mm Hg118 beats/min24 breaths/min94% on room air

The client's urine output for the past hour is 15 mL. Based on these findings, which action is the priority to prevent further physiological deterioration?

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Answer: Initiate a rapid infusion of isotonic crystalloid fluids and notify the surgical provider immediately.

Answer

The priority action is to initiate a rapid infusion of isotonic crystalloid fluids and immediately notify the surgical provider, as the client is exhibiting signs of early hemorrhagic shock.
The client is exhibiting classic signs of early compensatory hemorrhagic shock, including a narrowing pulse pressure (from 62 to 26 mm Hg), tachycardia, tachypnea, oliguria, and restlessness (cerebral hypoxia). Because the client had a highly vascular organ removed (splenectomy), internal bleeding is a high-risk complication. The immediate priority is to restore intravascular volume and tissue perfusion by administering isotonic crystalloids and notifying the surgeon for potential surgical re-exploration.

Step-by-Step Solution

1
Analyze the vital sign trends over the past two hours.
The pulse pressure has narrowed significantly (from 62 mm Hg to 26 mm Hg), accompanied by tachycardia (82 to 118 beats/min) and tachypnea (14 to 24 breaths/min).
Identifying subtle changes in vital signs is crucial for detecting early physiological deterioration.
2
Correlate vital signs with clinical symptoms and surgical history.
The narrowed pulse pressure, tachycardia, oliguria (15 mL/hr), and new-onset restlessness following a highly vascular surgery (splenectomy) indicate compensatory hemorrhagic shock.
Internal bleeding is a major postoperative risk; the body compensates by vasoconstricting (raising diastolic BP) and increasing heart rate to maintain cardiac output.
3
Determine the priority nursing intervention based on the ABCs (Airway, Breathing, Circulation).
The primary threat to life is circulatory collapse from hypovolemia.
Restoring intravascular volume with isotonic fluids is the immediate life-saving intervention before surgical correction of the hemorrhage.
4
Evaluate and eliminate the alternative interventions.
Elevating the head of the bed or administering sedatives are contraindicated and could precipitate cardiovascular collapse.
High-Fowler's position decreases venous return, and sedatives mask critical signs of cerebral hypoxia while potentially causing vasodilation.

Key Concept

Early recognition of postoperative hypovolemic (hemorrhagic) shock through subtle indicators such as a narrowing pulse pressure, tachycardia, and altered mental status.
Question 75Question →

A nurse is caring for an alert and oriented client with diabetes mellitus who reports feeling shaky and sweaty. The client's capillary blood glucose level is 55 mg/dL. Arrange the following nursing interventions in the correct order of priority.

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Answer

The correct sequence follows the 'Rule of 15' for managing hypoglycemia: administer 15 grams of simple carbohydrates, wait 15 minutes, reassess blood glucose, and finally provide a sustaining snack.
The 'Rule of 15' is the standard protocol for managing mild to moderate hypoglycemia in a conscious client. It begins with the immediate administration of 15 grams of a fast-acting carbohydrate to rapidly raise blood glucose. The nurse then waits 15 minutes to allow for absorption before reassessing the blood glucose level. If the level remains below 70 mg/dL, the process is repeated. Once the level normalizes (above 70 mg/dL), a complex carbohydrate and protein snack is provided to maintain blood glucose stability.

Step-by-Step Solution

1
Administer a fast-acting carbohydrate.
The client consumes 15 grams of simple carbohydrates.
Immediate treatment is necessary to raise the blood glucose level rapidly and prevent neurological deterioration in a conscious, hypoglycemic client.
2
Wait for 15 minutes.
Time is provided for digestion and absorption.
It takes roughly 15 minutes for the simple carbohydrates to be absorbed into the bloodstream and effectively raise the blood glucose.
3
Reassess blood glucose.
The blood glucose is checked to evaluate the client's response.
Reassessment determines if the initial intervention was successful (glucose is > 70 mg/dL) or if the 15-gram carbohydrate dose needs to be repeated.
4
Provide a sustaining snack.
The client eats a snack with complex carbohydrates and protein.
This prevents secondary hypoglycemia by providing a slower, sustained release of glucose into the bloodstream.

Key Concept

Hypoglycemia Management (Rule of 15)
Question 76Question →

During a clinic visit, a client reports continuous, severe vomiting over the last two days due to a gastrointestinal illness. The nurse anticipates that this prolonged loss of gastric secretions places the client at highest risk for which acid-base imbalance?

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Answer: Metabolic alkalosis

Answer

Metabolic alkalosis
The correct answer is metabolic alkalosis because prolonged vomiting depletes the body of gastric acid (hydrochloric acid). The significant loss of hydrogen ions causes a compensatory increase in systemic blood pH and bicarbonate levels, leading to a metabolic alkaline state. This is a fundamental physiological adaptation to upper gastrointestinal fluid loss.

Step-by-Step Solution

1
Identify the primary source and mechanism of fluid loss.
The client is experiencing severe, continuous vomiting.
Determining the route of fluid loss is the first step in predicting the associated physiological disruption.
2
Analyze the chemical composition of the lost fluid.
Stomach secretions are highly acidic because they contain large amounts of hydrochloric acid.
Understanding what electrolytes and ions are being depleted helps identify the specific acid-base shift.
3
Determine the resulting systemic imbalance.
The massive loss of hydrogen ions (acid) from the stomach leaves the blood with a relative excess of base (bicarbonate).
A decrease in systemic hydrogen ions directly increases blood pH, defining the state as metabolic alkalosis.

Key Concept

Acid-Base Imbalances related to Gastrointestinal Fluid Loss
Estimated Time:45s
Question 77Question →

A 3535-year-old client is 66 hours post-operative following an open reduction and internal fixation (ORIF) of a severe pelvic fracture. The client is receiving a continuous epidural infusion of bupivacaine and fentanyl. The nurse collects the following assessment data:

AssessmentFinding
Heart rate114114 beats/minute
Blood pressure106/82 mm Hg106/82 \text{ mm Hg}
Respiratory rate2222 breaths/minute
Arterial Blood GaspH 7.317.31, PaCO2\text{PaCO}_2 34 mm Hg34 \text{ mm Hg}, HCO3−\text{HCO}_3^- 16 mEq/L16 \text{ mEq/L}
Urine output35 mL35 \text{ mL} over the past 22 hours
SensoriumMildly restless and reports intense thirst

Which of the following actions should the nurse perform immediately to reduce the risk of further physiological deterioration?

Show answer & explanation

Answer: Position the client flat and prepare to initiate rapid intravenous fluid resuscitation with isotonic crystalloids

Answer

Position the client flat and prepare to initiate rapid intravenous fluid resuscitation with isotonic crystalloids.
The client's assessment data strongly indicate compensatory hypovolemic (hemorrhagic) shock, a major risk following pelvic trauma. In this early stage, the systolic blood pressure may appear deceptively normal due to intense peripheral vasoconstriction, but the narrow pulse pressure (24 mm Hg24 \text{ mm Hg}) and lactic acidosis (metabolic acidosis) reveal severe tissue hypoperfusion. Positioning the client flat maximizes venous return to the heart, and rapid isotonic crystalloid administration is the immediate priority to restore intravascular volume.

Step-by-Step Solution

1
Analyze the client's vital signs and hemodynamic parameters.
The pulse pressure is extremely narrow (106−82=24 mm Hg106 - 82 = 24 \text{ mm Hg}), accompanied by tachycardia (114 bpm114 \text{ bpm}) and severe oliguria (17.5 mL/hr17.5 \text{ mL/hr}).
A narrow pulse pressure combined with tachycardia is a cardinal sign of compensatory hypovolemic shock, even when the systolic pressure appears relatively stable above 100 mm Hg100 \text{ mm Hg}.
2
Evaluate the arterial blood gas (ABG) results and clinical presentation.
The ABG reveals an uncompensated metabolic acidosis (pH 7.317.31, low HCO3−\text{HCO}_3^- 16 mEq/L16 \text{ mEq/L}). The client is restless and thirsty.
In the context of severe pelvic trauma, this metabolic acidosis reflects lactic acid accumulation due to severe tissue hypoperfusion. Restlessness and thirst are classic indicators of cellular hypoxia and volume depletion.
3
Determine the priority nursing intervention to reduce physiological risk.
The highest priority is to optimize venous return by positioning the client flat (supine) and preparing for rapid intravascular volume expansion.
Immediate fluid resuscitation reverses the hypovolemic state and prevents progression to irreversible shock and multi-organ failure.

Key Concept

Recognizing early compensatory hypovolemic shock via narrow pulse pressure and metabolic acidosis, and intervening promptly with volume resuscitation.
Question 78Question →

A registered nurse is caring for an older adult client with cognitive impairment who is receiving continuous enteral feeding via a percutaneous endoscopic gastrostomy (PEG) tube. The client is increasingly restless, frequently scratching at the peri-stomal skin, and attempting to pull the feeding tubing. Which of the following actions is the most appropriate for the nurse to implement?

Show answer & explanation

Answer: Route the enteral tubing underneath the client's clothing and provide a tactile activity apron.

Answer

The most appropriate action is to route the enteral tubing underneath the client's clothing and provide a tactile activity apron.
Routing the tubing under clothing and providing a tactile apron represents the least restrictive approach to protecting the medical device. It successfully distracts the cognitively impaired client and camouflages the tube, adhering to basic care and comfort principles without resorting to restraints or compromising physiological safety.

Step-by-Step Solution

1
Analyze the client's presentation and current risk factors.
The client is cognitively impaired, receiving continuous enteral feeding, and at risk for device dislodgement due to restlessness.
Identifying the primary safety and comfort risks dictates the priority of nursing interventions.
2
Evaluate the proposed interventions against safety standards and the nursing scope of practice.
Lowering the head of the bed causes aspiration risk; delegating skin evaluation to a UAP violates delegation principles; and applying restraints skips required alternative measures.
Nursing actions must adhere to safety guidelines (e.g., aspiration precautions), legal standards (e.g., proper delegation), and institutional protocols (e.g., restraint use).
3
Select the intervention that ensures client safety using the least restrictive method.
Camouflaging the tube and providing sensory distraction is selected.
These are effective, first-line restraint alternatives that maintain the integrity of the feeding tube while promoting client comfort.

Key Concept

Restraint Alternatives and Enteral Feeding Safety
Question 79Question →

An adult client experiencing recurrent seizure activity is admitted to the neurological unit. The client has a single patent 2020-gauge peripheral intravenous catheter infusing 5%5\% dextrose in 0.45%0.45\% sodium chloride at 80 mL/hr80 \text{ mL/hr}. The provider prescribes a stat loading dose of phenytoin 1000 mg1000 \text{ mg} intravenously. The pharmacy delivers the medication diluted in 100 mL100 \text{ mL} of normal saline. What is the safest method for the nurse to administer this medication?

Show answer & explanation

Answer: Pause the primary infusion, flush the catheter with normal saline, infuse the phenytoin over 3030 minutes, and flush again with normal saline.

Answer

The safest method is to pause the primary dextrose infusion, flush the catheter with normal saline, infuse the phenytoin over 30 minutes, and flush again with normal saline.
The correct action is to pause the primary dextrose infusion and flush the line with normal saline before and after administering the phenytoin. Phenytoin is highly incompatible with dextrose-containing solutions and will precipitate if mixed, forming solid crystals in the tubing. Because the medication is prescribed as a stat dose for recurrent seizures, utilizing the existing patent catheter by clearing it with normal saline is the fastest and safest approach. Additionally, administering the dose over 30 minutes ensures the infusion rate remains below the maximum safe limit of 50 mg/min50 \text{ mg/min}.

Step-by-Step Solution

1
Identify the primary fluid composition and check drug compatibility.
The primary fluid contains dextrose, which is highly incompatible with phenytoin.
Mixing phenytoin with dextrose solutions causes immediate crystallization and precipitation in the intravenous tubing.
2
Calculate the safe infusion rate for the prescribed dose.
The maximum safe rate for intravenous phenytoin is 50 mg/min50 \text{ mg/min}. For a 1000 mg1000 \text{ mg} dose, the absolute minimum infusion time is 2020 minutes (1000÷501000 \div 50).
Infusing phenytoin faster than 50 mg/min50 \text{ mg/min} can cause severe cardiovascular toxicity, including hypotension and arrhythmias.
3
Determine the most efficient and safe administration route utilizing existing resources.
The existing line must be cleared of dextrose using normal saline (flush-administer-flush technique).
This prevents precipitation without unnecessarily delaying a 'stat' medication to insert a new catheter.

Key Concept

Phenytoin Intravenous Administration Safety
Question 80Question →

A nurse is educating a client who has a right fractured tibia and is prescribed non-weight-bearing status. The client is learning to ascend a flight of stairs using axillary crutches. In what order should the nurse instruct the client to perform the following movements?

Drag items to arrange them in the correct order

Show answer & explanation

Answer

The client should first assume a tripod position, transfer weight to the crutches, advance the unaffected leg up the step, shift weight to the unaffected leg, and finally bring the affected leg and crutches up to the step.
When ascending stairs with crutches, the fundamental principle is 'up with the good, down with the bad.' The client must begin with a stable tripod stance, support their weight on the crutches, and step up with the unaffected (strong) leg first. Once the strong leg is on the step, the client shifts their weight onto it and uses its strength to lift the affected leg and the crutches simultaneously up to the step.

Step-by-Step Solution

1
Assume the tripod position facing the bottom of the stairs.
The client establishes a stable base.
A secure starting stance is necessary for balance and safety before moving.
2
Transfer body weight entirely onto the crutches.
The client's legs are freed from bearing weight.
This allows the client to lift the strong leg without losing balance.
3
Move the unaffected left leg up onto the stair tread.
The strong leg is positioned on the higher level.
When ascending stairs, the unaffected ('good') leg always goes first to provide the power to lift the body weight.
4
Shift body weight from the crutches onto the unaffected left leg.
Weight is transferred to the elevated strong leg.
The strong leg must bear the body weight to pull the rest of the body upward.
5
Advance the right leg and both crutches together up to the step.
The client completes the ascent of one step.
The crutches and the affected leg follow the strong leg to the new level, completing the movement sequence.

Key Concept

Assistive device mobility and safe stair climbing
Estimated Time:1m 30s
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