Physiological Integrity

1960 questions

Question 281Question →

A nurse is monitoring a client who is receiving a continuous intravenous infusion of packed red blood cells (PRBCs). Fifteen minutes after the transfusion begins, the client reports sudden lower back pain, chills, and dyspnea. Place the following nursing actions in the correct order of performance. (All steps must be used).

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Answer

1. Stop the blood transfusion immediately. 2. Replace the intravenous tubing with a new set primed with 0.9% sodium chloride. 3. Assess the client's vital signs and oxygen saturation. 4. Notify the primary healthcare provider and the blood bank. 5. Return the blood bag and attached tubing to the blood bank.
In a suspected blood transfusion reaction, the priority is to stop the causative agent immediately to minimize harm. Next, IV access must be maintained with normal saline using completely new tubing to avoid flushing residual blood into the client. Assessment of vital signs follows to determine the client's physiological status, which is then reported to the provider. Finally, the blood products and equipment are returned to the blood bank for investigation.

Step-by-Step Solution

1
Stop the causative agent.
The blood transfusion is halted immediately upon recognizing signs of an acute hemolytic reaction.
Prevents further infusion of incompatible blood cells, which is the most critical life-saving intervention.
2
Maintain intravenous access safely.
The IV tubing is changed entirely and 0.9% sodium chloride is initiated.
Secures a patent line for emergency medications without infusing the remaining blood that is trapped in the old tubing.
3
Evaluate the client's current physiological status.
Vital signs and respiratory status are assessed.
Provides essential baseline data on hemodynamic stability to report to the healthcare provider for tailored interventions.
4
Escalate care and follow administrative protocols.
The healthcare provider and blood bank are notified.
Facilitates rapid medical intervention and initiates the facility's transfusion reaction investigation protocol.
5
Preserve evidence for investigation.
The blood bag and attached tubing are returned to the blood bank.
Allows the laboratory to analyze the blood products and determine the exact immunological or procedural cause of the adverse reaction.

Key Concept

Management of Acute Hemolytic Transfusion Reactions
Question 282Question →

A nurse is monitoring a client diagnosed with Guillain-Barré syndrome who reports increasing weakness in the upper body. The client's forced vital capacity (FVC) has decreased from 40 mL/kg to 14 mL/kg over the past shift. The most recent arterial blood gas (ABG) results on room air reveal a pH of 7.29, PaCO2 of 58 mm Hg (7.7 kPa), PaO2 of 64 mm Hg (8.5 kPa), and HCO3- of 25 mEq/L (25 mmol/L). Based on these findings, what is the priority nursing action?

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Answer: Prepare the client for immediate endotracheal intubation and mechanical ventilation

Answer

The correct action is to prepare the client for immediate endotracheal intubation and mechanical ventilation.
The client is experiencing acute respiratory failure due to the ascending paralysis characteristic of Guillain-Barré syndrome. The ABG results demonstrate uncompensated respiratory acidosis (pH 7.29, PaCO2 58 mm Hg), indicating that the client is retaining carbon dioxide due to severe hypoventilation. A forced vital capacity (FVC) less than 15 mL/kg is a critical clinical threshold that signals imminent respiratory muscle fatigue. Because the primary pathophysiological issue is a mechanical inability to ventilate, the priority action is to secure the airway and initiate mechanical ventilation.

Step-by-Step Solution

1
Analyze the arterial blood gas (ABG) results to determine the client's acid-base status.
The ABG shows uncompensated respiratory acidosis (low pH, high PaCO2, normal HCO3-) with hypoxemia.
Identifying the primary physiological disturbance is the first step in clinical prioritization.
2
Evaluate the client's clinical progression and forced vital capacity (FVC) trend.
The FVC has dropped to 14 mL/kg, and upper body weakness is increasing.
An FVC below 15 mL/kg in a client with a neuromuscular disorder indicates imminent respiratory muscle failure.
3
Synthesize the data to determine the most appropriate intervention.
The combination of severe acute respiratory acidosis and critical FVC decline requires immediate artificial airway placement.
Supplemental oxygen or positioning will not overcome the mechanical failure of the diaphragm and intercostal muscles.

Key Concept

Management of acute respiratory failure and ABG interpretation in neuromuscular disorders.
Question 283Question →

A client who recently experienced a cerebrovascular accident requires an intermittent bolus enteral feeding through an established nasogastric (NG) tube. Place the following nursing actions in the correct sequence for safely delivering this nutrition. (Arrange the steps in chronological order.)

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Answer

The correct sequence is to first elevate the head of the bed, then measure the gastric residual volume, reinstill the aspirated volume, administer the feeding by gravity, and finally flush the tube with water.
The correct sequence prioritizes airway safety by positioning the client first. Next, the nurse assesses feeding tolerance by checking the residual volume. To maintain physiological balance, the residual is reinstilled. Only after these safety and assessment steps are completed is the feeding administered. Finally, flushing the tube ensures it remains patent for future use. This logical progression aligns with standard nursing care for enteral nutrition.

Step-by-Step Solution

1
Elevate the head of the bed to at least 30 degrees.
The client is positioned safely to prevent reflux.
Reduces the risk of aspiration, which is the most critical safety concern during enteral feedings.
2
Aspirate gastric contents to measure residual volume.
The amount of undigested formula from previous feedings is quantified.
Evaluates gastric emptying and determines if it is safe to proceed with the next feeding.
3
Reinstill the aspirated gastric residual volume.
Gastric contents are returned to the client's stomach.
Prevents the loss of essential electrolytes, digestive enzymes, and fluid.
4
Administer the enteral feeding formula by gravity.
The client receives the prescribed nutrition.
Using gravity prevents the rapid instillation of formula, which can cause gastrointestinal distress.
5
Flush the tube with water.
The tube is cleared of any remaining nutritional formula.
Maintains tube patency, prevents clogging, and provides additional free water for hydration.

Key Concept

Safe Administration of Enteral Nutrition
Question 284Question →

A healthcare provider prescribes an intermittent intravenous vancomycin infusion of 15 mg/kg15\text{ mg/kg} for a client with a severe bacterial infection. The client weighs 154 lb154\text{ lb}. To prevent red man syndrome, institutional guidelines require vancomycin to be administered at a maximum rate of 10 mg/min10\text{ mg/min}. Calculate the minimum safe infusion time in minutes for this dose. Record your answer as a whole number.

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Answer: 105

Answer

105
To find the minimum safe infusion time, first convert the weight to kilograms (154 lb÷2.2=70 kg154\text{ lb} \div 2.2 = 70\text{ kg}). Next, calculate the total dose by multiplying the weight by the prescribed dosage (70 kg×15 mg/kg=1050 mg70\text{ kg} \times 15\text{ mg/kg} = 1050\text{ mg}). Finally, divide the total dose by the maximum safe infusion rate (1050 mg÷10 mg/min1050\text{ mg} \div 10\text{ mg/min}) to yield 105 minutes105\text{ minutes}. This ensures the medication is administered slowly enough to prevent infusion-related reactions.

Step-by-Step Solution

1
Convert the client's weight from pounds to kilograms.
154 lb÷2.2=70 kg154\text{ lb} \div 2.2 = 70\text{ kg}
The vancomycin order is weight-based, and standard medical calculations require weight in kilograms.
2
Calculate the total prescribed dose of vancomycin.
70 kg×15 mg/kg=1050 mg70\text{ kg} \times 15\text{ mg/kg} = 1050\text{ mg}
The total dosage in milligrams must be determined before the administration time can be calculated.
3
Determine the minimum safe infusion time.
1050 mg÷10 mg/min=105 minutes1050\text{ mg} \div 10\text{ mg/min} = 105\text{ minutes}
Dividing the total dose by the maximum allowable rate per minute yields the minimum time required to safely infuse the medication.

Key Concept

Calculating safe intravenous administration rates for weight-based medication dosages.
Question 285Question →

A nurse is evaluating an adult client who returned to the cardiac step-down unit 45 minutes45\text{ minutes} ago following a percutaneous coronary intervention (PCI) via the right femoral artery. The client's baseline vital signs prior to the procedure were: blood pressure 138/82 mm Hg138/82\text{ mm Hg}, heart rate 72 beats per minute72\text{ beats per minute}, and respiratory rate 16 breaths per minute16\text{ breaths per minute}. Which of the following assessment findings require immediate intervention by the nurse to reduce the risk of physiological decompensation? (Select all that apply.)

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Answer: The client is resting with the head of the bed elevated to a 60∘60^\circ angle.; The client reports a new, persistent dull ache in the right flank and lower back.; The client's current vital signs are blood pressure 102/58 mm Hg102/58\text{ mm Hg} and heart rate 116 beats per minute116\text{ beats per minute}.

Answer

The findings requiring immediate intervention are the head of the bed elevated to 60 degrees, the new flank and lower back pain, and the vital signs showing hypotension with tachycardia.
The correct options represent critical safety breaches or signs of life-threatening post-procedure complications. Elevating the head of the bed beyond 30 degrees places excessive tension on the femoral puncture site, severely increasing the risk of hemorrhage. A new dull ache in the flank or lower back is a hallmark sign of a retroperitoneal hemorrhage, a hidden and potentially fatal bleed. The significant drop in blood pressure accompanied by tachycardia indicates early hemorrhagic shock, requiring rapid medical response.

Step-by-Step Solution

1
Analyze the client's clinical presentation and procedure history.
The client had a PCI via the right femoral artery 45 minutes ago, putting them at high risk for access-site bleeding, retroperitoneal hemorrhage, and arterial occlusion.
Identifying the specific procedure determines the targeted post-operative complications to monitor.
2
Evaluate the assessment findings for signs of hemorrhage or shock.
The new flank pain indicates a potential retroperitoneal bleed. The vital sign changes (hypotension and tachycardia) confirm impending hemorrhagic shock.
Early recognition of internal bleeding is critical to prevent fatal physiological decompensation.
3
Assess environmental and positional safety factors.
The client is sitting at a 60-degree angle, which is contraindicated.
The head of the bed must remain flat or elevated no more than 30 degrees to prevent tension and rupture of the femoral access site.
4
Differentiate between normal and abnormal diagnostic or physical findings.
The ABG values, small amount of dry blood, and strong bilateral pulses are all normal, expected findings.
Accurate clinical judgment requires prioritizing interventions only for pathological or high-risk findings.

Key Concept

Reduction of Risk Potential: Post-catheterization complications and hemodynamics
Estimated Time:1m 30s
Question 286Question →

A nurse is developing a plan of care for a client who is 12 hours postoperative following an exploratory laparotomy and bowel resection. Which of the following nursing actions should be implemented to reduce the risk of potential physiological complications? (Select all that apply.)

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Answer: Verify the compatibility of intermittent intravenous (IV) medications with the continuous primary IV fluid prior to administration.; Monitor for a narrowing pulse pressure and mild tachycardia as early physiological indicators of hypovolemic shock.; Maintain the client in a semi-Fowler's position to promote lung expansion and decrease tension on the surgical incision.

Answer

The correct actions include verifying IV medication compatibility, monitoring for early signs of shock such as a narrowing pulse pressure and mild tachycardia, and maintaining the client in a semi-Fowler's position.
Verifying IV medication compatibility prevents chemical precipitation and adverse physiological reactions. Monitoring for a narrowing pulse pressure and mild tachycardia is crucial, as these are subtle, early compensatory indicators of hypovolemic or hemorrhagic shock that occur before a significant drop in blood pressure. Placing the client in a semi-Fowler's position utilizes gravity to enhance diaphragmatic excursion for preventing respiratory complications (like atelectasis) and relaxes the abdominal muscles to decrease mechanical tension on the fresh surgical incision.

Step-by-Step Solution

1
Identify the client's current clinical status and time since surgery.
The client is 12 hours postoperative following an exploratory laparotomy and bowel resection.
Understanding the surgical context helps anticipate potential early postoperative complications such as hemorrhage, respiratory compromise, paralytic ileus, and deep vein thrombosis.
2
Evaluate each proposed nursing action against evidence-based safety and risk reduction principles.
Verifying IV compatibility, monitoring for early shock signs, and using a semi-Fowler's position are recognized risk reduction strategies. Delegating initial assessments, palpating before auscultation, and using knee pillows are contraindicated and unsafe.
Applying clinical judgment ensures that selected interventions actively prevent harm rather than increase physiological risk.
3
Select all actions that correctly promote safety and reduce physiological risk.
The correct actions are verifying IV compatibility, monitoring for early shock signs, and maintaining a semi-Fowler's position.
These interventions directly address and mitigate the highest priority risks for a client recovering from major abdominal surgery.

Key Concept

Reduction of Risk Potential in Postoperative Care
Question 287Question →

A nurse is caring for an older adult client with advanced Parkinson's disease who is on aspiration precautions due to documented oropharyngeal dysphagia. The client frequently experiences fatigue and bilateral hand tremors during mealtimes. Which of the following is the most appropriate nursing intervention to promote safe nutritional intake?

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Answer: Instruct the client to flex their neck and tuck their chin downward toward the chest during each swallow.

Answer

The most appropriate nursing intervention is to instruct the client to flex their neck and tuck their chin downward toward the chest during each swallow.
Instructing the client to use the chin-tuck maneuver is the correct intervention. Tucking the chin downward toward the chest while swallowing narrows the airway opening and helps prevent the aspiration of food or fluids into the trachea, which is a critical basic care measure for clients with dysphagia.

Step-by-Step Solution

1
Identify the client's primary clinical risk based on the scenario.
The client has Parkinson's disease, documented oropharyngeal dysphagia, and is on aspiration precautions.
Establishing the highest priority need (airway protection) guides the selection of the most appropriate intervention.
2
Evaluate the proposed positioning and feeding techniques for safety and effectiveness.
The chin-tuck maneuver is identified as an evidence-based method to protect the airway during oral intake.
Flexing the neck narrows the airway opening, widens the valleculae, and pushes the epiglottis posteriorly, which helps prevent food or liquid from entering the trachea.
3
Analyze the distractors for safety, delegation, and pathological evaluation errors.
Semi-Fowler's positioning, delegating initial swallowing assessments to a UAP, and dismissing pathological coughing as normal aging are identified as unsafe nursing practices.
Eliminating contraindicated actions ensures the selected intervention strictly promotes safe basic care and comfort.

Key Concept

Basic Care and Comfort - Dysphagia and Aspiration Precautions
Question 288Question →

A nurse is evaluating a client 12 hours after a partial hepatectomy. The client is restless, anxious, and reports intense thirst. Assessment reveals pale, cool skin. Vital signs are: heart rate 122 bpm, blood pressure 104/86 mm Hg, and respiratory rate 26 breaths/min. The client's urinary output has been 40 mL over the past two hours. An arterial blood gas (ABG) analysis shows a pH of 7.32, PaCO2\text{PaCO}_2 of 33 mm Hg, and HCO3−\text{HCO}_3^- of 18 mEq/L. Based on these physiological findings, which of the following complications is the client most likely experiencing?

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Answer: Early hypovolemic shock

Answer

The client is most likely experiencing early hypovolemic shock.
The client is exhibiting classic signs of early hypovolemic (hemorrhagic) shock, a significant risk following a highly vascular procedure like a partial hepatectomy. The narrowing pulse pressure (the difference between systolic and diastolic pressure), tachycardia, oliguria, and pale, cool skin demonstrate the body's compensatory sympathetic response to maintain cardiac output. Furthermore, the ABG reveals metabolic acidosis with partial respiratory compensation, which occurs due to lactic acid accumulation from inadequate tissue perfusion.

Step-by-Step Solution

1
Analyze the vital signs and physical assessment findings.
The client has tachycardia, tachypnea, a narrowed pulse pressure (104 - 86 = 18 mm Hg), pale/cool skin, and intense thirst.
These are classic compensatory signs of sympathetic nervous system activation in response to decreased cardiac output and intravascular volume.
2
Evaluate the urinary output.
The output is 40 mL over two hours (20 mL/hr), which indicates oliguria.
Oliguria is a compensatory mechanism (activation of the RAAS pathway) to retain fluid and maintain blood pressure during volume depletion.
3
Interpret the arterial blood gas (ABG) results.
The pH is 7.32 (acidemia), HCO3−\text{HCO}_3^- is 18 mEq/L (metabolic acidosis), and PaCO2\text{PaCO}_2 is 33 mm Hg (partial respiratory compensation).
Inadequate tissue perfusion (shock) leads to anaerobic metabolism, producing lactic acid and causing metabolic acidosis. The tachypnea is attempting to blow off CO2 to compensate.
4
Synthesize the findings to identify the underlying complication.
All assessment data point to a systemic perfusion deficit.
Following highly vascular surgery like a hepatectomy, these combined physiological adaptations strongly indicate early hemorrhagic/hypovolemic shock.

Key Concept

Recognition of compensatory physiological mechanisms in early hypovolemic shock.
Question 289Question →

A nurse is assessing a client who is 4 hours post-operative following an open abdominal surgery with significant intraoperative blood loss. Which of the following clinical findings indicate the client is experiencing the early (compensatory) stage of hypovolemic shock? (Select all that apply)

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Answer: Narrowing of the arterial pulse pressure; Resting heart rate increasing from 82 to 116 beats per minute; New onset of mild anxiety and restlessness

Answer

The correct findings are a narrowing pulse pressure, increased heart rate, and new onset of mild anxiety and restlessness.
In the early (compensatory) stage of hypovolemic shock, the body attempts to maintain adequate tissue perfusion by activating the sympathetic nervous system. This response causes an increase in heart rate to maintain cardiac output. Peripheral vasoconstriction occurs, which raises the diastolic blood pressure and results in a narrowing of the arterial pulse pressure, while the systolic blood pressure is initially maintained. Additionally, early cerebral hypoxia and sympathetic stimulation manifest as mild anxiety and restlessness.

Step-by-Step Solution

1
Identify the primary clinical risk for this client.
The client has a history of significant intraoperative blood loss, placing them at high risk for hypovolemic shock.
Establishing the underlying pathophysiology is necessary to anticipate the expected clinical progression.
2
Determine the physiological changes that occur during the early (compensatory) stage of shock.
The body activates the sympathetic nervous system to maintain cardiac output and tissue perfusion before blood pressure drops.
The compensatory stage is characterized by protective physiological mechanisms before frank hemodynamic collapse occurs.
3
Evaluate each finding to distinguish between early compensatory signs and late progressive signs.
Tachycardia, narrowing pulse pressure, and anxiety are early signs. Profound hypotension and metabolic acidosis are late signs.
Accurate identification of early signs allows for prompt, life-saving intervention before irreversible cellular damage happens.

Key Concept

Early (Compensatory) Stage of Hypovolemic Shock
Question 290Question →

A nurse is performing a routine administration set change for a client receiving continuous parenteral nutrition via a right subclavian central venous catheter. While the nurse is transitioning the tubing, the client takes a sudden, deep inspiration before the connection is secured. The client immediately grasps their chest, reporting severe pain, shortness of breath, and a sense of impending doom. The cardiac monitor shows a heart rate of 132132 beats per minute and the blood pressure drops to 86/4886/48 mmHg. Which of the following is the priority nursing action?

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Answer: Clamp the central venous catheter and position the client on their left side in the Trendelenburg position.

Answer

The priority action is to clamp the central venous catheter and position the client on their left side with the head of the bed lowered (left lateral Trendelenburg).
The client is exhibiting classic signs of a venous air embolism, a life-threatening complication that occurs when a central venous catheter is open to atmospheric pressure during a deep inhalation. The immediate priority is to stop further air entry by clamping the catheter. Following this, positioning the client on their left side with the head down (left lateral Trendelenburg or Durant's maneuver) uses gravity to trap the air bubble in the right atrium or the apex of the right ventricle. This prevents the air from migrating into the pulmonary circulation and causing a fatal right ventricular outflow obstruction.

Step-by-Step Solution

1
Identify the clinical complication based on the sudden onset of symptoms.
Dyspnea, chest pain, and hypotension immediately following an open central line connection strongly indicate a venous air embolism.
Negative intrathoracic pressure during inspiration can pull atmospheric air into an open central venous catheter.
2
Determine the immediate intervention to stop the source of the problem.
Clamp the central venous catheter.
Clamping the catheter prevents any additional air from entering the venous circulation.
3
Select the correct physiological positioning to mitigate the complication.
Place the client in the left lateral Trendelenburg position (Durant's maneuver).
This specific position utilizes gravity to trap the air bubble in the apex of the right ventricle, preventing it from entering and obstructing the pulmonary artery while the body slowly absorbs the air.

Key Concept

Management of Central Venous Catheter Complications (Air Embolism)
Question 291Question →

A nurse is caring for a client who sustained a pelvic fracture following a motor vehicle collision. The nurse monitors the client closely for internal bleeding and suspects the onset of the early compensatory stage of hypovolemic shock. Which clinical manifestations support this assessment? Select all that apply.

Select all that apply

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Answer: Unexplained restlessness and mild apprehension; A narrowing pulse pressure; Heart rate increasing from 72 to 114 beats per minute

Answer

The correct findings are unexplained restlessness and mild apprehension, a narrowing pulse pressure, and an increased heart rate.
In the early compensatory stage of hypovolemic shock, the body's primary goal is to maintain perfusion to vital organs. The sympathetic nervous system is activated, releasing epinephrine and norepinephrine. This response causes an increased heart rate (tachycardia) to boost cardiac output and peripheral vasoconstriction, which elevates the diastolic blood pressure, leading to a narrowed pulse pressure. Additionally, the brain is highly sensitive to slight decreases in oxygenation, making neurological changes like restlessness, anxiety, or mild confusion one of the earliest clinical indicators of declining perfusion.

Step-by-Step Solution

1
Analyze the client's clinical situation.
The client has a pelvic fracture, placing them at high risk for concealed hemorrhage and hypovolemic shock.
Understanding the mechanism of injury helps anticipate potential life-threatening complications.
2
Identify the physiological changes associated with the 'early compensatory' stage of shock.
The body activates the sympathetic nervous system to maintain cardiac output and blood pressure despite fluid loss.
Compensatory mechanisms include increased heart rate, peripheral vasoconstriction, and increased respiratory rate.
3
Evaluate each option against the expected compensatory responses.
Restlessness (decreased cerebral oxygenation), narrowing pulse pressure (vasoconstriction raising diastolic BP), and tachycardia (increased sympathetic tone) are all early signs. Hypotension and respiratory acidosis occur in later, progressive stages.
Differentiating between early and late signs of shock is crucial for timely and effective nursing interventions.

Key Concept

Early Compensatory Shock Indicators
Question 292Question →

A nurse is conducting a postoperative assessment on a client who underwent a partial nephrectomy 4 hours ago. The client's baseline preoperative blood pressure was 130/76 mm Hg, and the heart rate was 78/min. Current vital signs reveal a blood pressure of 106/84 mm Hg, a heart rate of 114/min, and a respiratory rate of 20/min. The client's urinary output has been 15 mL over the past hour. Which of the following actions should the nurse prioritize to reduce the risk of physiological decompensation?

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Answer: Contact the healthcare provider and prepare to administer a rapid isotonic intravenous fluid bolus.

Answer

The priority action is to contact the healthcare provider and prepare to administer a rapid isotonic intravenous fluid bolus.
The client is exhibiting early, compensatory signs of hypovolemic shock, likely due to bleeding after the nephrectomy. A narrowing pulse pressure (dropping from a baseline of 54 mm Hg to 22 mm Hg), tachycardia, and oliguria (15 mL/hr) are classic indicators of decreased intravascular volume. The priority action to reduce the risk of organ failure is to notify the provider and administer isotonic intravenous fluids to restore perfusion.

Step-by-Step Solution

1
Analyze the trend in the client's vital signs compared to the preoperative baseline.
The pulse pressure has narrowed significantly from 54 mm Hg (130-76) to 22 mm Hg (106-84), the heart rate has increased to 114/min, and the urine output is oliguric at 15 mL/hr.
Identifying subtle changes in vital sign trends is critical for the early detection of postoperative complications.
2
Synthesize the assessment data to determine the underlying clinical issue.
The combination of a narrowing pulse pressure, tachycardia, and oliguria indicates early hypovolemic shock, likely secondary to postoperative internal hemorrhage.
Recognizing the physiological signs of impaired perfusion guides the selection of the correct emergency intervention.
3
Select the most appropriate nursing intervention to address the identified risk.
The nurse must notify the provider immediately and initiate fluid resuscitation.
Immediate volume replacement is required to restore intravascular volume, maintain tissue perfusion, and prevent severe cardiovascular collapse.

Key Concept

Early Recognition and Management of Hypovolemic Shock
Question 293Question →

An intensive care nurse is monitoring a client with end-stage renal disease who is undergoing their first hemodialysis treatment via a newly placed right internal jugular central venous catheter. Approximately 90 minutes90\text{ minutes} into the session, the client becomes increasingly restless and reports a severe, throbbing headache accompanied by nausea. The client's vital signs display a blood pressure of 184/106 mm Hg184/106\text{ mm Hg}, elevated from a pre-dialysis baseline of 152/86 mm Hg152/86\text{ mm Hg}. Which immediate action should the nurse take to mitigate this developing complication?

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Answer: Decrease the blood flow rate on the hemodialysis machine.

Answer

The correct action is to decrease the blood flow rate on the hemodialysis machine.
The client is exhibiting classic signs of dialysis disequilibrium syndrome (DDS), a life-threatening neurologic complication that occurs most frequently during a client's first few hemodialysis treatments. DDS is caused by the rapid removal of solutes (such as urea) from the blood, which clears faster than solutes in the cerebrospinal fluid and brain tissue. This creates an osmotic gradient that draws water into the brain cells, resulting in cerebral edema and increased intracranial pressure (ICP). The symptoms of restlessness, severe headache, nausea, and hypertension are indicative of rising ICP. The priority action to mitigate this risk is to immediately decrease the blood flow rate on the hemodialysis machine. This slows the rate of solute removal, allowing the osmotic gradient between the intravascular space and the brain tissue to equilibrate, preventing further cerebral edema.

Step-by-Step Solution

1
Analyze the client's clinical presentation and vital signs during the hemodialysis treatment.
The client is experiencing a new onset of restlessness, severe headache, nausea, and significant hypertension (184/106 mm Hg184/106\text{ mm Hg}) during their first hemodialysis session.
Identifying symptom clusters is necessary to differentiate between various intra-dialytic complications.
2
Correlate the findings with potential hemodialysis complications.
The symptoms strongly indicate dialysis disequilibrium syndrome (DDS), a life-threatening complication caused by the rapid removal of urea from the blood, leading to cerebral edema and increased intracranial pressure.
DDS is most common during a client's initial dialysis treatments when blood urea nitrogen (BUN) levels are highest.
3
Determine the priority risk-reduction intervention.
The nurse must immediately slow the rate of solute removal by decreasing the blood flow rate on the dialysis machine, or stop the treatment entirely if symptoms become severe.
Slowing the clearance rate minimizes the osmotic gradient between the brain tissue and the blood, halting the progression of cerebral edema.

Key Concept

Dialysis disequilibrium syndrome (DDS) is a potentially fatal complication occurring primarily during initial hemodialysis treatments. It is characterized by neurological deterioration due to rapid solute removal and subsequent cerebral edema. The immediate priority is to slow or stop the dialysis process to stabilize the osmotic gradient.
Estimated Time:1m 30s
Question 294Question →

While completing a shift assessment on a telemetry unit, a nurse evaluates a client who experienced an acute myocardial infarction 48 hours ago. The client exhibits sudden, severe dyspnea, expectorates pink, frothy sputum, and has coarse crackles auscultated throughout both lung fields. Which of the following is the priority nursing action?

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Answer: Apply prescribed supplemental oxygen via a non-rebreather mask.

Answer

Apply prescribed supplemental oxygen via a non-rebreather mask.
The client's symptoms (severe dyspnea, coarse crackles, and pink, frothy sputum) are classic signs of acute pulmonary edema, a life-threatening complication of myocardial infarction resulting from left-sided heart failure. Using the ABC (Airway, Breathing, Circulation) prioritization framework, addressing the severe impairment in oxygenation is the most critical immediate action. Administering supplemental oxygen directly treats the severe hypoxemia.

Step-by-Step Solution

1
Analyze the clinical findings to identify the underlying complication.
The combination of sudden severe dyspnea, pink and frothy sputum, and coarse crackles indicates acute pulmonary edema, a medical emergency resulting from left-sided heart failure following a myocardial infarction.
Recognizing the life-threatening complication is essential for determining the appropriate emergency interventions.
2
Apply the ABC (Airway, Breathing, Circulation) prioritization framework.
The client is actively experiencing a severe impairment in gas exchange and breathing, making respiratory support the absolute highest priority.
Airway and breathing must be stabilized before addressing circulation, running diagnostic tests, or addressing other concerns.
3
Evaluate the given options to select the most appropriate initial intervention.
Applying supplemental oxygen directly addresses the breathing compromise. Interventions like positioning the client flat or increasing IV fluids will exacerbate fluid overload.
Selecting the correct action ensures immediate patient safety and avoids interventions that could cause further physiological harm.

Key Concept

Management of acute pulmonary edema and application of the ABC framework.
Estimated Time:1m 0s
Question 295Question →

A nurse is planning care for a client who has a serum potassium level of 2.6 mEq/L2.6\text{ mEq/L} and a prescription for intravenous potassium chloride (KCl) replacement. Which of the following nursing actions are required for the safe administration of this medication? (Select all that apply.)

Select all that apply

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Answer: Verify that the client's urine output is at least 30 mL/hr30\text{ mL/hr} before initiating the infusion.; Ensure the medication is administered using an electronic volumetric infusion pump.; Assess the intravenous insertion site hourly for signs of phlebitis or extravasation.

Answer

The correct actions are verifying a urine output of at least 30 mL/hr30\text{ mL/hr}, using an electronic infusion pump, and assessing the IV site hourly.
Potassium chloride is a high-alert medication that requires rigorous safety protocols. The correct actions ensure the patient has adequate renal clearance (urine output of at least 30 mL/hr30\text{ mL/hr}) to prevent hyperkalemia, utilize an electronic volumetric pump to strictly regulate the infusion rate, and mandate frequent assessment of the peripheral IV site because the medication is a known vesicant and severe vascular irritant.

Step-by-Step Solution

1
Analyze the prescribed medication and its risk profile.
Potassium chloride is a high-alert medication that can cause lethal arrhythmias and severe tissue necrosis if administered improperly.
Recognizing the high-risk nature of the drug dictates the necessary safety precautions.
2
Evaluate the requirement for an electronic infusion pump and site monitoring.
The infusion must be strictly controlled with a pump to prevent rapid administration, and the peripheral site must be assessed hourly because potassium is highly irritating to veins.
These actions prevent accidental boluses and severe chemical phlebitis or extravasation.
3
Assess physiological prerequisites for potassium administration.
Renal function must be verified (urine output ≥30 mL/hr\geq 30\text{ mL/hr}) because the kidneys excrete the majority of potassium.
Administering potassium to a client with renal impairment can quickly lead to life-threatening hyperkalemia.
4
Identify contraindicated actions that compromise patient safety.
Direct IV push, rapid peripheral infusion rates (20 mEq/hr20\text{ mEq/hr}), and adding concentrated electrolytes to actively infusing bags are critical safety violations.
These actions lead to immediate cardiac arrest or massive medication errors.

Key Concept

Safe Parenteral Administration of Potassium Chloride
Question 296Question →

A client diagnosed with an acute pulmonary embolism is receiving a continuous intravenous infusion of unfractionated heparin via a single peripheral catheter. The healthcare provider prescribes a scheduled dose of intravenous vancomycin to treat a concurrent soft tissue infection. A review of the medication reference guide indicates that heparin and vancomycin are physically incompatible. What is the most appropriate nursing action?

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Answer: Establish a separate peripheral intravenous catheter to administer the vancomycin.

Answer

Establish a separate peripheral intravenous catheter to administer the vancomycin.
Unfractionated heparin is a high-alert medication used to maintain vital anticoagulation in an acute pulmonary embolism. Interrupting this continuous infusion for the 60 to 90 minutes required to safely administer vancomycin could cause life-threatening thrombus extension. Because the medications are physically incompatible and cannot be mixed in the same line without forming a dangerous precipitate, the nurse must establish a second intravenous access site to administer the vancomycin safely while maintaining the continuous heparin therapy.

Step-by-Step Solution

1
Identify the primary clinical need.
The client requires continuous anticoagulation with heparin for a life-threatening pulmonary embolism.
Interrupting the heparin infusion for a prolonged period increases the risk of thrombus extension.
2
Identify the medication conflict.
Heparin and vancomycin are physically incompatible and cannot be mixed in the same line.
Mixing them will cause precipitate formation in the intravenous tubing.
3
Evaluate the administration constraints of the secondary medication.
Vancomycin must be infused slowly over at least 60 to 90 minutes.
Rapid infusion of vancomycin causes a severe histamine-mediated hypotensive reaction known as Red Man syndrome.
4
Determine the safest intervention based on the constraints.
Establish a second independent intravenous access site.
This allows both the critical continuous heparin infusion and the prolonged vancomycin infusion to run concurrently and safely without mixing.

Key Concept

Management of physically incompatible intravenous medications in clients requiring continuous high-alert infusions.
Question 297Question →

A nurse is discontinuing a right subclavian non-tunneled central venous catheter for a client whose intravenous antibiotic therapy is complete. To minimize the risk of complications, in what order should the nurse perform the following actions?

Drag items to arrange them in the correct order

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Answer

The correct sequence is to position the client supine, instruct them to perform the Valsalva maneuver, withdraw the catheter, apply firm pressure to the site, and finally inspect the catheter tip.
Central venous catheter removal poses a significant risk for an air embolism because the intrathoracic pressure can drop below atmospheric pressure during inhalation, drawing air into the open vein. Placing the client in a supine position ensures the site is not elevated above the heart, increasing central venous pressure. Instructing the client to perform the Valsalva maneuver (bearing down) further raises intrathoracic pressure above atmospheric pressure. The catheter must be withdrawn precisely while this positive pressure is maintained. Immediately after removal, firm pressure is required to achieve hemostasis and physically block air entry. Finally, after the site is secure, inspecting the catheter tip ensures no fragments have embolized.

Step-by-Step Solution

1
Position the client flat in a supine position.
The insertion site is placed at or below the level of the heart.
This positioning decreases the risk of atmospheric air being drawn into the central circulation.
2
Instruct the client to take a deep breath and bear down.
The client increases their intrathoracic pressure.
Creating a positive pressure gradient in the thorax prevents an air embolism while the catheter tract is open.
3
Withdraw the catheter smoothly in one continuous motion.
The catheter is safely removed.
Removal must occur precisely during the Valsalva maneuver to minimize the risk of air entry.
4
Apply firm, direct pressure to the site with a sterile gauze pad.
Hemostasis is achieved at the removal site.
Immediate continuous pressure prevents bleeding and physically seals the venous pathway from air.
5
Inspect the distal tip of the removed catheter for intactness.
The integrity of the catheter is confirmed.
This verification ensures that a catheter fragment has not broken off, which could cause a catheter embolism.

Key Concept

The primary risks during central venous catheter removal are air embolism and bleeding. Nursing actions must follow a specific chronological sequence to maintain positive venous pressure and achieve hemostasis.
Estimated Time:1m 0s
Question 298Question →

A nurse in the surgical intensive care unit is planning care for a 5454-year-old client who is 44 hours postoperative following an emergency bowel resection and formation of a temporary colostomy due to an intestinal perforation. The client is receiving continuous intravenous (IV) fluids and has an arterial line in place for hemodynamic monitoring. Which nursing actions are essential to reduce the risk of physiological complications? Select all that apply.

Select all that apply

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Answer: Assess the stoma for a dark purple or black appearance and immediately report this finding to the surgeon.; Monitor the arterial line tracing for a narrowing pulse pressure as an early physiological indicator of hypovolemic shock.; Verify the chemical compatibility of all prescribed intermittent IV medications with the primary continuous fluid infusion.

Answer

The essential actions to reduce risk potential are assessing the stoma for ischemic changes (dark purple or black appearance), monitoring the arterial line for a narrowing pulse pressure, and verifying intravenous medication compatibility.
Stoma ischemia (indicated by a dark purple or black stoma) is a surgical emergency requiring immediate reporting to preserve tissue viability. Monitoring for a narrowing pulse pressure is a critical assessment skill, as this subtle hemodynamic change often precedes frank hypotension in early hypovolemic or hemorrhagic shock. Finally, verifying intravenous medication compatibility is a fundamental safety measure that prevents drug precipitation and catheter occlusion, directly reducing the risk of intravenous therapy complications.

Step-by-Step Solution

1
Evaluate the client's postoperative physiological risks based on the surgical procedure and present monitoring equipment.
The client is at high risk for bowel ischemia, hypovolemic shock, respiratory complications, and intravenous therapy errors.
Identifying priority physiological risks directs the nurse to focus on assessments that detect life-threatening complications early.
2
Analyze each proposed intervention to determine if it safely mitigates or inadvertently exacerbates the identified physiological risks.
Assessing stoma perfusion, monitoring pulse pressure, and checking IV compatibility are correctly identified as protective interventions. The other actions represent clinical errors in positioning, assessment sequence, and lab interpretation.
Safe nursing practice requires distinguishing between evidence-based risk reduction strategies and unsafe actions that could harm a vulnerable postoperative client.

Key Concept

Postoperative Risk Reduction and Hemodynamic Monitoring
Question 299Question →

A nurse is caring for a client who is 3 days postoperative following a total right hip arthroplasty. The client suddenly reports sharp, pleuritic chest pain and a feeling of impending doom. The nurse obtains the following assessment data:

AssessmentFinding
Blood pressure108/84 mmHg
Heart rate122 beats/min
Respiratory rate32 breaths/min
Oxygen saturation86% on room air
pH7.52
PaCO228 mmHg
HCO324 mEq/L
PaO255 mmHg

Which of the following is the priority nursing action?

Show answer & explanation

Answer: Apply high-flow oxygen via a non-rebreather mask

Answer

The correct priority action is to apply high-flow oxygen via a non-rebreather mask to treat the severe hypoxemia.
The client's presentation is highly suspicious for a pulmonary embolism, a common complication after major joint replacement surgery. The primary life-threatening issue is severe hypoxemia (PaO2 55 mmHg, SpO2 86%). According to the Airway, Breathing, Circulation (ABC) framework, maximizing oxygen delivery with a non-rebreather mask is the most urgent life-saving intervention.

Step-by-Step Solution

1
Analyze the client's clinical presentation and vital signs.
The client exhibits sudden chest pain, a feeling of impending doom, tachycardia, tachypnea, a narrowed pulse pressure (24 mmHg), and severe hypoxemia (SpO2 86%).
Identifying these sudden, severe changes in a postoperative client points heavily toward a life-threatening complication such as a pulmonary embolism and early compensatory shock.
2
Interpret the Arterial Blood Gas (ABG) values.
The ABG reveals uncompensated respiratory alkalosis (pH 7.52, PaCO2 28 mmHg) driven by critical hypoxemia (PaO2 55 mmHg).
The client is hyperventilating as a physiological response to compensate for the profound lack of oxygen, which consequently blows off CO2 and raises the blood pH.
3
Apply the Airway, Breathing, Circulation (ABC) prioritization framework.
Breathing and oxygenation are critically compromised and represent the most immediate threat to the client's life.
Before addressing pain or requesting medications for restlessness, the severe oxygen deficit must be corrected immediately with high-flow supplemental oxygen.

Key Concept

Prioritization in acute respiratory failure and pulmonary embolism requires immediate correction of severe hypoxemia before addressing secondary symptoms or compensatory mechanisms.
Question 300Question →

A nurse is caring for a client who has just returned to the medical-surgical unit following a percutaneous liver biopsy. What is the priority nursing action to reduce this client's risk for post-procedure hemorrhage?

Show answer & explanation

Answer: Assist the client into a right side-lying position and place a small rolled blanket directly under the puncture site

Answer

The priority action is to assist the client into a right side-lying position and place a small rolled blanket directly under the puncture site.
The liver is a highly vascular organ, making hemorrhage a significant and life-threatening risk following a percutaneous biopsy. Assisting the client into a right side-lying (lateral decubitus) position with a small rolled blanket or towel under the puncture site applies direct physical pressure to the liver capsule against the chest wall. This external pressure promotes hemostasis and is the most critical immediate intervention to reduce the risk of internal bleeding.

Step-by-Step Solution

1
Identify the primary risk associated with a percutaneous liver biopsy.
The liver is a highly vascular organ, making internal hemorrhage the most critical immediate post-procedure complication.
Understanding the most dangerous potential complication determines the priority nursing intervention for risk reduction.
2
Determine the physical intervention that best mitigates this bleeding risk.
Direct, sustained pressure must be applied to the abdominal puncture site to promote localized hemostasis.
External pressure facilitates clot formation and prevents continued bleeding from the highly vascular liver capsule.
3
Select the client position that achieves this direct pressure.
Placing the client in a right side-lying (lateral decubitus) position utilizes the client's own body weight against the bed to compress the right-sided biopsy site.
This non-pharmacological positioning technique is the standard protocol for hemorrhage risk reduction following this specific procedure.

Key Concept

Post-procedure hemorrhage prevention
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