TEST BANK
CLINICAL REASONING CASES IN
NURSING
,Table of Contents
1. Perfusion
2. Gas Exchange
3. Mobility
4. Digestion
5. Urinary Elimination
6. Intracranial Regulation
7. Metabolism and Glucose Regulation
8. Immunity
9. Cellular Regulation
10. Tissue Integrity
11. Cognition
12. Infection and Inflammation
13. Developmental
14. Reproductive
15. Mood, Stress, and Addiction
,CHAPTER 1: PERFUSION
PART A: Multiple Choice Questions
Question 1.
Which of the following is the PRIMARY function of the cardiovascular system in relation to
perfusion?
A. Filtering waste products through the kidneys
B. Delivering oxygenated blood and nutrients to tissues and organs
C. Regulating body temperature through sweating
D. Producing red blood cells in the bone marrow
Answer: B
Rationale: Perfusion refers to the passage of blood through the circulatory system to deliver
oxygen and nutrients to body tissues and remove waste products. The cardiovascular system is
the primary mechanism by which perfusion is maintained throughout the body.
Question 2.
A nurse assesses a client and finds a blood pressure of 88/52 mmHg, heart rate of 118
beats/min, and cool, clammy skin. These findings are MOST consistent with:
A. Hypertensive crisis
B. Cardiogenic shock
C. Fluid volume excess
D. Stable angina
Answer: B
Rationale: Cardiogenic shock presents with hypotension, tachycardia, and signs of poor
peripheral perfusion (cool, clammy skin) due to the heart's inability to maintain adequate
cardiac output. These classic signs indicate severely compromised perfusion.
Question 3.
Which of the following laboratory values is the MOST important to monitor in a client receiving
anticoagulation therapy with warfarin?
,A. Complete blood count (CBC)
B. Serum potassium
C. International Normalized Ratio (INR)
D. Blood urea nitrogen (BUN)
Answer: C
Rationale: The INR is the standardized measurement used to monitor the therapeutic effect of
warfarin. The therapeutic INR range for most indications is 2.0–3.0. Values outside this range
indicate either subtherapeutic anticoagulation (risk of clot) or supratherapeutic anticoagulation
(risk of bleeding).
MEDIUM
Question 4.
A nurse is caring for a client with acute myocardial infarction (AMI). Which of the following
assessment findings would indicate a complication requiring IMMEDIATE intervention?
A. Blood pressure of 124/78 mmHg
B. Chest pain rated 2/10 at rest
C. New onset of crackles bilaterally in the lung bases and an oxygen saturation of 89%
D. Heart rate of 88 beats/min with a regular rhythm
Answer: C
Rationale: Bilateral crackles and decreased oxygen saturation in a client with AMI suggest the
development of acute pulmonary edema secondary to left ventricular failure—a life-
threatening complication requiring immediate intervention. This indicates that the failing heart
cannot pump blood forward, causing fluid to back up into the pulmonary circulation.
Question 5.
A client with peripheral artery disease (PAD) reports leg pain that occurs with walking and is
relieved by rest. The nurse recognizes this as:
A. Deep vein thrombosis (DVT)
B. Intermittent claudication
C. Venous insufficiency
D. Restless leg syndrome
, Answer: B
Rationale: Intermittent claudication is the hallmark symptom of PAD, characterized by
cramping or pain in the legs during exertion (walking) that is relieved by rest. It occurs because
the narrowed arteries cannot supply adequate blood flow to meet the increased oxygen
demands of exercising muscles.
Question 6.
A nurse is reviewing the 12-lead ECG of a client with chest pain. Which of the following ECG
changes is MOST indicative of an acute ST-elevation myocardial infarction (STEMI)?
A. Prolonged PR interval greater than 0.20 seconds
B. ST segment elevation greater than 1 mm in two or more contiguous leads
C. Widened QRS complex greater than 0.12 seconds
D. Presence of U waves in precordial leads
Answer: B
Rationale: ST segment elevation greater than 1 mm (0.1 mV) in two or more contiguous leads is
the defining ECG finding of STEMI, indicating complete occlusion of a coronary artery and
transmural myocardial injury requiring emergent reperfusion therapy (PCI or thrombolytics).
Question 7.
A client is admitted with deep vein thrombosis (DVT) of the left lower extremity. Which nursing
action is the HIGHEST priority?
A. Applying warm compresses to the affected leg
B. Encouraging the client to ambulate to prevent further clot formation
C. Monitoring for signs of pulmonary embolism, including sudden chest pain and dyspnea
D. Measuring the circumference of both legs every 8 hours
Answer: C
Rationale: The highest priority in DVT management is monitoring for pulmonary embolism (PE),
which occurs when a clot dislodges and travels to the pulmonary vasculature. PE can be life-
threatening and presents with sudden onset of chest pain, dyspnea, tachycardia, and hypoxia.
Early recognition is critical.
, HARD
Question 8.
A nurse is caring for a client in the cardiac intensive care unit following a large anterior wall MI.
The client's hemodynamic monitoring reveals: cardiac output (CO) 2.8 L/min, pulmonary
capillary wedge pressure (PCWP) 22 mmHg, and systemic vascular resistance (SVR) 1,800
dynes/sec/cm⁻⁵. Which of the following interventions is MOST appropriate?
A. Administer a 1,000 mL IV fluid bolus to increase preload
B. Initiate vasopressor therapy to increase heart rate
C. Administer inotropic agents (e.g., dobutamine) to improve cardiac contractility and reduce
afterload
D. Place the client in Trendelenburg position to improve venous return
Answer: C
Rationale: The hemodynamic profile (low CO, elevated PCWP indicating increased preload/fluid
overload, and elevated SVR indicating increased afterload) is consistent with cardiogenic shock.
Inotropic therapy (e.g., dobutamine) increases myocardial contractility and may also reduce
afterload. IV fluid boluses would worsen pulmonary congestion (elevated PCWP), and
Trendelenburg is contraindicated in cardiogenic shock.
Question 9.
A nurse is performing a clinical reasoning analysis for a client with heart failure. The client's
current assessment reveals: weight gain of 4 lbs in 2 days, bilateral 3+ pitting edema, crackles
bilaterally, BNP 1,200 pg/mL, and blood pressure 162/94 mmHg. Using clinical reasoning, which
of the following is the MOST appropriate priority nursing diagnosis?
A. Risk for impaired skin integrity related to peripheral edema
B. Deficient knowledge related to heart failure self-management
C. Decreased cardiac output related to increased preload and afterload as evidenced by
elevated BNP, weight gain, edema, and pulmonary congestion
D. Activity intolerance related to fatigue
Answer: C
Rationale: The assessment data (rapidly increasing weight, 3+ pitting edema, bilateral crackles,
markedly elevated BNP, and hypertension) all point to acute decompensated heart failure with
decreased cardiac output as the priority problem. BNP is a biomarker released by the ventricles
,in response to increased wall stress from volume/pressure overload. This is the most
immediate life-threatening concern and must be the priority nursing diagnosis.
Question 10.
A client with a history of atrial fibrillation is prescribed anticoagulation therapy. The client
reports taking the herbal supplement garlic in high doses and ibuprofen regularly for joint pain.
The nurse's PRIORITY concern regarding this combination is:
A. Increased risk of constipation from the combination of medications
B. Reduced effectiveness of the anticoagulant due to drug-herb interaction
C. Significantly increased risk of bleeding due to the additive anticoagulant and antiplatelet
effects of ibuprofen and garlic combined with the prescribed anticoagulant
D. Potential for hypertensive crisis due to the combination
Answer: C
Rationale: Both ibuprofen (an NSAID with antiplatelet effects) and high-dose garlic (which has
anticoagulant and antiplatelet properties) can significantly potentiate the anticoagulant effect
of prescribed anticoagulants (e.g., warfarin), increasing the risk of serious or life-threatening
bleeding. The nurse must assess for bleeding signs and educate the client about these
interactions immediately.
PART B: True/False Questions
EASY
Question 1.
Cardiac output is calculated by multiplying heart rate by stroke volume.
Answer: TRUE
Rationale: Cardiac output (CO) = Heart Rate (HR) × Stroke Volume (SV). Normal cardiac output
in adults is approximately 4–8 L/min. Both heart rate and stroke volume must be maintained
within normal ranges to ensure adequate tissue perfusion.
,Question 2.
Troponin I and Troponin T are cardiac-specific biomarkers that rise in the blood following
myocardial cell injury.
Answer: TRUE
Rationale: Cardiac troponins (I and T) are released into the bloodstream when myocardial cells
are damaged or destroyed. They are the most sensitive and specific biomarkers for diagnosing
acute myocardial infarction and begin to rise within 3–6 hours of injury, peaking at 24–48
hours.
Question 3.
A client with peripheral arterial disease (PAD) should elevate their legs above the level of the
heart to improve circulation.
Answer: FALSE
Rationale: Leg elevation is indicated for venous insufficiency (to promote venous return), NOT
for PAD (arterial disease). In PAD, elevating the legs worsens arterial blood flow by working
against gravity. Clients with PAD should dangle their legs or keep them at or below heart level
to improve arterial perfusion.
MEDIUM
Question 4.
ST segment depression on a 12-lead ECG during a stress test is a normal finding and does not
require further evaluation.
Answer: FALSE
Rationale: ST segment depression during a stress test is an abnormal finding that indicates
myocardial ischemia—insufficient blood supply to the heart muscle during increased oxygen
demand. It requires prompt further evaluation, such as coronary angiography, to assess for
significant coronary artery disease.
,Question 5.
A client receiving IV heparin therapy should have the activated partial thromboplastin time
(aPTT) monitored to assess therapeutic effectiveness.
Answer: TRUE
Rationale: The aPTT is the primary laboratory test used to monitor IV unfractionated heparin
therapy. The therapeutic range is typically 60–100 seconds (approximately 1.5–2.5 times the
control value). Regular monitoring ensures that the dose is sufficient to prevent clotting
without causing excessive bleeding risk.
Question 6.
Hypertension is a modifiable risk factor for coronary artery disease that can be addressed
through lifestyle changes and medication.
Answer: TRUE
Rationale: Hypertension is one of the major modifiable risk factors for coronary artery disease
(CAD), stroke, and heart failure. It can be effectively managed through lifestyle modifications
(diet, exercise, weight loss, smoking cessation, alcohol reduction) and antihypertensive
medications, reducing cardiovascular risk significantly.
Question 7.
In a client with left-sided heart failure, fluid backs up into the systemic venous circulation,
causing peripheral edema and jugular venous distension.
Answer: FALSE
Rationale: Left-sided heart failure causes fluid to back up into the pulmonary circulation (not
systemic), resulting in pulmonary congestion, crackles, and dyspnea. Right-sided heart failure
causes fluid to back up into the systemic venous circulation, producing peripheral edema,
jugular venous distension, and hepatomegaly.
HARD
Question 8.
Aortic stenosis causes pressure overload of the left ventricle because the left ventricle must
, generate higher pressures to eject blood through a narrowed aortic valve, eventually leading to
left ventricular hypertrophy and heart failure.
Answer: TRUE
Rationale: In aortic stenosis, the narrowed valve creates increased resistance to left ventricular
outflow (increased afterload). The left ventricle compensates by hypertrophying (thickening),
but over time the compensatory mechanisms fail, leading to decreased cardiac output, reduced
coronary perfusion, and ultimately heart failure. This is a critical concept in understanding
valvular disease pathophysiology.
Question 9.
A client in hypovolemic shock should receive immediate vasopressor therapy as the first-line
treatment to restore blood pressure.
Answer: FALSE
Rationale: The first-line treatment for hypovolemic shock is volume replacement (IV fluids
and/or blood products), not vasopressors. Vasopressors are used as adjuncts when volume
replacement alone is insufficient. Administering vasopressors without addressing the
underlying volume deficit can cause end-organ damage by constricting already underperfused
tissues.
Question 10.
A nurse caring for a client with an acute coronary syndrome (ACS) can safely delay the
administration of aspirin until a physician confirms the diagnosis with cardiac biomarkers and
ECG findings.
Answer: FALSE
Rationale: In ACS, aspirin should be administered as early as possible—typically immediately
upon suspicion of ACS, even before diagnostic confirmation—because it inhibits platelet
aggregation and limits thrombus propagation. Delays in aspirin administration are associated
with increased myocardial damage and worse outcomes. This is a Class I recommendation in
ACS guidelines.
CLINICAL REASONING CASES IN
NURSING
,Table of Contents
1. Perfusion
2. Gas Exchange
3. Mobility
4. Digestion
5. Urinary Elimination
6. Intracranial Regulation
7. Metabolism and Glucose Regulation
8. Immunity
9. Cellular Regulation
10. Tissue Integrity
11. Cognition
12. Infection and Inflammation
13. Developmental
14. Reproductive
15. Mood, Stress, and Addiction
,CHAPTER 1: PERFUSION
PART A: Multiple Choice Questions
Question 1.
Which of the following is the PRIMARY function of the cardiovascular system in relation to
perfusion?
A. Filtering waste products through the kidneys
B. Delivering oxygenated blood and nutrients to tissues and organs
C. Regulating body temperature through sweating
D. Producing red blood cells in the bone marrow
Answer: B
Rationale: Perfusion refers to the passage of blood through the circulatory system to deliver
oxygen and nutrients to body tissues and remove waste products. The cardiovascular system is
the primary mechanism by which perfusion is maintained throughout the body.
Question 2.
A nurse assesses a client and finds a blood pressure of 88/52 mmHg, heart rate of 118
beats/min, and cool, clammy skin. These findings are MOST consistent with:
A. Hypertensive crisis
B. Cardiogenic shock
C. Fluid volume excess
D. Stable angina
Answer: B
Rationale: Cardiogenic shock presents with hypotension, tachycardia, and signs of poor
peripheral perfusion (cool, clammy skin) due to the heart's inability to maintain adequate
cardiac output. These classic signs indicate severely compromised perfusion.
Question 3.
Which of the following laboratory values is the MOST important to monitor in a client receiving
anticoagulation therapy with warfarin?
,A. Complete blood count (CBC)
B. Serum potassium
C. International Normalized Ratio (INR)
D. Blood urea nitrogen (BUN)
Answer: C
Rationale: The INR is the standardized measurement used to monitor the therapeutic effect of
warfarin. The therapeutic INR range for most indications is 2.0–3.0. Values outside this range
indicate either subtherapeutic anticoagulation (risk of clot) or supratherapeutic anticoagulation
(risk of bleeding).
MEDIUM
Question 4.
A nurse is caring for a client with acute myocardial infarction (AMI). Which of the following
assessment findings would indicate a complication requiring IMMEDIATE intervention?
A. Blood pressure of 124/78 mmHg
B. Chest pain rated 2/10 at rest
C. New onset of crackles bilaterally in the lung bases and an oxygen saturation of 89%
D. Heart rate of 88 beats/min with a regular rhythm
Answer: C
Rationale: Bilateral crackles and decreased oxygen saturation in a client with AMI suggest the
development of acute pulmonary edema secondary to left ventricular failure—a life-
threatening complication requiring immediate intervention. This indicates that the failing heart
cannot pump blood forward, causing fluid to back up into the pulmonary circulation.
Question 5.
A client with peripheral artery disease (PAD) reports leg pain that occurs with walking and is
relieved by rest. The nurse recognizes this as:
A. Deep vein thrombosis (DVT)
B. Intermittent claudication
C. Venous insufficiency
D. Restless leg syndrome
, Answer: B
Rationale: Intermittent claudication is the hallmark symptom of PAD, characterized by
cramping or pain in the legs during exertion (walking) that is relieved by rest. It occurs because
the narrowed arteries cannot supply adequate blood flow to meet the increased oxygen
demands of exercising muscles.
Question 6.
A nurse is reviewing the 12-lead ECG of a client with chest pain. Which of the following ECG
changes is MOST indicative of an acute ST-elevation myocardial infarction (STEMI)?
A. Prolonged PR interval greater than 0.20 seconds
B. ST segment elevation greater than 1 mm in two or more contiguous leads
C. Widened QRS complex greater than 0.12 seconds
D. Presence of U waves in precordial leads
Answer: B
Rationale: ST segment elevation greater than 1 mm (0.1 mV) in two or more contiguous leads is
the defining ECG finding of STEMI, indicating complete occlusion of a coronary artery and
transmural myocardial injury requiring emergent reperfusion therapy (PCI or thrombolytics).
Question 7.
A client is admitted with deep vein thrombosis (DVT) of the left lower extremity. Which nursing
action is the HIGHEST priority?
A. Applying warm compresses to the affected leg
B. Encouraging the client to ambulate to prevent further clot formation
C. Monitoring for signs of pulmonary embolism, including sudden chest pain and dyspnea
D. Measuring the circumference of both legs every 8 hours
Answer: C
Rationale: The highest priority in DVT management is monitoring for pulmonary embolism (PE),
which occurs when a clot dislodges and travels to the pulmonary vasculature. PE can be life-
threatening and presents with sudden onset of chest pain, dyspnea, tachycardia, and hypoxia.
Early recognition is critical.
, HARD
Question 8.
A nurse is caring for a client in the cardiac intensive care unit following a large anterior wall MI.
The client's hemodynamic monitoring reveals: cardiac output (CO) 2.8 L/min, pulmonary
capillary wedge pressure (PCWP) 22 mmHg, and systemic vascular resistance (SVR) 1,800
dynes/sec/cm⁻⁵. Which of the following interventions is MOST appropriate?
A. Administer a 1,000 mL IV fluid bolus to increase preload
B. Initiate vasopressor therapy to increase heart rate
C. Administer inotropic agents (e.g., dobutamine) to improve cardiac contractility and reduce
afterload
D. Place the client in Trendelenburg position to improve venous return
Answer: C
Rationale: The hemodynamic profile (low CO, elevated PCWP indicating increased preload/fluid
overload, and elevated SVR indicating increased afterload) is consistent with cardiogenic shock.
Inotropic therapy (e.g., dobutamine) increases myocardial contractility and may also reduce
afterload. IV fluid boluses would worsen pulmonary congestion (elevated PCWP), and
Trendelenburg is contraindicated in cardiogenic shock.
Question 9.
A nurse is performing a clinical reasoning analysis for a client with heart failure. The client's
current assessment reveals: weight gain of 4 lbs in 2 days, bilateral 3+ pitting edema, crackles
bilaterally, BNP 1,200 pg/mL, and blood pressure 162/94 mmHg. Using clinical reasoning, which
of the following is the MOST appropriate priority nursing diagnosis?
A. Risk for impaired skin integrity related to peripheral edema
B. Deficient knowledge related to heart failure self-management
C. Decreased cardiac output related to increased preload and afterload as evidenced by
elevated BNP, weight gain, edema, and pulmonary congestion
D. Activity intolerance related to fatigue
Answer: C
Rationale: The assessment data (rapidly increasing weight, 3+ pitting edema, bilateral crackles,
markedly elevated BNP, and hypertension) all point to acute decompensated heart failure with
decreased cardiac output as the priority problem. BNP is a biomarker released by the ventricles
,in response to increased wall stress from volume/pressure overload. This is the most
immediate life-threatening concern and must be the priority nursing diagnosis.
Question 10.
A client with a history of atrial fibrillation is prescribed anticoagulation therapy. The client
reports taking the herbal supplement garlic in high doses and ibuprofen regularly for joint pain.
The nurse's PRIORITY concern regarding this combination is:
A. Increased risk of constipation from the combination of medications
B. Reduced effectiveness of the anticoagulant due to drug-herb interaction
C. Significantly increased risk of bleeding due to the additive anticoagulant and antiplatelet
effects of ibuprofen and garlic combined with the prescribed anticoagulant
D. Potential for hypertensive crisis due to the combination
Answer: C
Rationale: Both ibuprofen (an NSAID with antiplatelet effects) and high-dose garlic (which has
anticoagulant and antiplatelet properties) can significantly potentiate the anticoagulant effect
of prescribed anticoagulants (e.g., warfarin), increasing the risk of serious or life-threatening
bleeding. The nurse must assess for bleeding signs and educate the client about these
interactions immediately.
PART B: True/False Questions
EASY
Question 1.
Cardiac output is calculated by multiplying heart rate by stroke volume.
Answer: TRUE
Rationale: Cardiac output (CO) = Heart Rate (HR) × Stroke Volume (SV). Normal cardiac output
in adults is approximately 4–8 L/min. Both heart rate and stroke volume must be maintained
within normal ranges to ensure adequate tissue perfusion.
,Question 2.
Troponin I and Troponin T are cardiac-specific biomarkers that rise in the blood following
myocardial cell injury.
Answer: TRUE
Rationale: Cardiac troponins (I and T) are released into the bloodstream when myocardial cells
are damaged or destroyed. They are the most sensitive and specific biomarkers for diagnosing
acute myocardial infarction and begin to rise within 3–6 hours of injury, peaking at 24–48
hours.
Question 3.
A client with peripheral arterial disease (PAD) should elevate their legs above the level of the
heart to improve circulation.
Answer: FALSE
Rationale: Leg elevation is indicated for venous insufficiency (to promote venous return), NOT
for PAD (arterial disease). In PAD, elevating the legs worsens arterial blood flow by working
against gravity. Clients with PAD should dangle their legs or keep them at or below heart level
to improve arterial perfusion.
MEDIUM
Question 4.
ST segment depression on a 12-lead ECG during a stress test is a normal finding and does not
require further evaluation.
Answer: FALSE
Rationale: ST segment depression during a stress test is an abnormal finding that indicates
myocardial ischemia—insufficient blood supply to the heart muscle during increased oxygen
demand. It requires prompt further evaluation, such as coronary angiography, to assess for
significant coronary artery disease.
,Question 5.
A client receiving IV heparin therapy should have the activated partial thromboplastin time
(aPTT) monitored to assess therapeutic effectiveness.
Answer: TRUE
Rationale: The aPTT is the primary laboratory test used to monitor IV unfractionated heparin
therapy. The therapeutic range is typically 60–100 seconds (approximately 1.5–2.5 times the
control value). Regular monitoring ensures that the dose is sufficient to prevent clotting
without causing excessive bleeding risk.
Question 6.
Hypertension is a modifiable risk factor for coronary artery disease that can be addressed
through lifestyle changes and medication.
Answer: TRUE
Rationale: Hypertension is one of the major modifiable risk factors for coronary artery disease
(CAD), stroke, and heart failure. It can be effectively managed through lifestyle modifications
(diet, exercise, weight loss, smoking cessation, alcohol reduction) and antihypertensive
medications, reducing cardiovascular risk significantly.
Question 7.
In a client with left-sided heart failure, fluid backs up into the systemic venous circulation,
causing peripheral edema and jugular venous distension.
Answer: FALSE
Rationale: Left-sided heart failure causes fluid to back up into the pulmonary circulation (not
systemic), resulting in pulmonary congestion, crackles, and dyspnea. Right-sided heart failure
causes fluid to back up into the systemic venous circulation, producing peripheral edema,
jugular venous distension, and hepatomegaly.
HARD
Question 8.
Aortic stenosis causes pressure overload of the left ventricle because the left ventricle must
, generate higher pressures to eject blood through a narrowed aortic valve, eventually leading to
left ventricular hypertrophy and heart failure.
Answer: TRUE
Rationale: In aortic stenosis, the narrowed valve creates increased resistance to left ventricular
outflow (increased afterload). The left ventricle compensates by hypertrophying (thickening),
but over time the compensatory mechanisms fail, leading to decreased cardiac output, reduced
coronary perfusion, and ultimately heart failure. This is a critical concept in understanding
valvular disease pathophysiology.
Question 9.
A client in hypovolemic shock should receive immediate vasopressor therapy as the first-line
treatment to restore blood pressure.
Answer: FALSE
Rationale: The first-line treatment for hypovolemic shock is volume replacement (IV fluids
and/or blood products), not vasopressors. Vasopressors are used as adjuncts when volume
replacement alone is insufficient. Administering vasopressors without addressing the
underlying volume deficit can cause end-organ damage by constricting already underperfused
tissues.
Question 10.
A nurse caring for a client with an acute coronary syndrome (ACS) can safely delay the
administration of aspirin until a physician confirms the diagnosis with cardiac biomarkers and
ECG findings.
Answer: FALSE
Rationale: In ACS, aspirin should be administered as early as possible—typically immediately
upon suspicion of ACS, even before diagnostic confirmation—because it inhibits platelet
aggregation and limits thrombus propagation. Delays in aspirin administration are associated
with increased myocardial damage and worse outcomes. This is a Class I recommendation in
ACS guidelines.
