NURS 8026 Test 1 Study Guide exam
with multiple choice questions with
verified answers and rationale
updated 2026 graded A+
QUESTION 1
A nurse is reviewing the pathophysiology of heart failure. Which statement best describes the Frank-
Starling mechanism?
A) Heart muscle contracts more forcefully when stretched within physiologic limits
B) Increased sympathetic stimulation always improves cardiac output
C) The heart rate increases to compensate for decreased contractility
D) Ventricular compliance increases with age
Correct Answer: A
Rationale: The Frank-Starling mechanism describes the relationship between ventricular filling
(preload) and the force of contraction. Within physiologic limits, increased stretch of cardiac muscle
fibers leads to stronger contraction due to optimal overlap of actin and myosin filaments. Options B,
C, and D are either false or represent different compensatory mechanisms rather than the Frank-
Starling law itself.
QUESTION 2
A 65-year-old patient with systolic heart failure is prescribed an ACE inhibitor. Which physiologic
mechanism explains the benefit of this medication?
A) Decreases afterload and reduces aldosterone secretion
B) Increases heart rate to improve cardiac output
C) Promotes fluid retention to increase preload
D) Increases angiotensin II production
Correct Answer: A
,Rationale: ACE inhibitors block the conversion of angiotensin I to angiotensin II, which reduces
systemic vasoconstriction (decreasing afterload) and inhibits aldosterone secretion (reducing fluid
retention). This reduces the workload on the failing heart and helps prevent remodeling. Options B,
C, and D are incorrect mechanisms of ACE inhibitor action.
QUESTION 3
A nurse assesses a patient with acute decompensated heart failure. Which finding would the nurse
expect to observe?
A) Decreased jugular venous pressure
B) Orthopnea and paroxysmal nocturnal dyspnea
C) Decreased S3 gallop
D) Warm, dry skin with good perfusion
Correct Answer: B
Rationale: In heart failure with pulmonary congestion, fluid backs up into the lungs causing
orthopnea (shortness of breath when lying flat) and paroxysmal nocturnal dyspnea (sudden
nighttime awakening with dyspnea). An S3 gallop is present (not decreased), JVP would be elevated
(not decreased), and skin would be cool and clammy due to decreased perfusion.
QUESTION 4
Which compensatory mechanism in chronic heart failure eventually becomes maladaptive?
A) Increased contractility from sympathetic stimulation
B) Ventricular remodeling and hypertrophy
C) Increased heart rate
D) Peripheral vasoconstriction
Correct Answer: B
Rationale: While ventricular hypertrophy initially helps maintain cardiac output, chronic remodeling
leads to chamber dilation, fibrosis, and impaired function—ultimately worsening the disease.
,Sympathetic stimulation, tachycardia, and vasoconstriction are also maladaptive long-term, but
ventricular remodeling is the most significant structural consequence that perpetuates heart failure
progression.
QUESTION 5
A patient presents with signs of right ventricular failure. Which assessment finding would
differentiate right-sided heart failure?
A) Pulmonary edema and orthopnea
B) Peripheral edema, hepatomegaly, and elevated JVP
C) Decreased cardiac output with cool extremities
D) Increased preload with decreased afterload
Correct Answer: B
Rationale: Right ventricular failure causes backward blood flow into the systemic venous circulation,
resulting in peripheral edema, hepatomegaly, and elevated jugular venous pressure. Pulmonary
edema and orthopnea are characteristic of left-sided heart failure. Options C and D are vague
descriptions without specific right heart failure features.
QUESTION 6
A nurse is educating a heart failure patient about sodium restriction. Which rationale best explains
why sodium restriction is important?
A) Sodium decreases blood viscosity
B) Sodium promotes water retention, increasing preload and cardiac workload
C) Sodium increases myocardial contractility
D) Sodium prevents arrhythmias
Correct Answer: B
Rationale: Sodium is osmotically active and promotes water retention in the body. In heart failure,
fluid overload increases preload and ventricular wall stress, worsening symptoms. Restricting sodium
, intake reduces fluid retention and decreases the workload on the failing heart. Options A, C, and D
are incorrect physiologic explanations.
QUESTION 7
Which medication class directly improves outcomes in systolic heart failure by reducing ventricular
remodeling?
A) Beta-blockers and ACE inhibitors
B) Diuretics and inotropes
C) Vasodilators and calcium channel blockers
D) Nitrates and hydralazine
Correct Answer: A
Rationale: Beta-blockers and ACE inhibitors have been shown to reduce mortality and slow
ventricular remodeling in systolic heart failure through neurohormonal antagonism. Diuretics and
inotropes improve symptoms but don't prevent remodeling. Vasodilators, calcium channel blockers,
nitrates, and hydralazine may relieve symptoms but lack the evidence for mortality benefit in systolic
dysfunction.
QUESTION 8
A patient with heart failure has a BNP (B-type natriuretic peptide) level of 450 pg/mL. Which
interpretation is correct?
A) Normal result; no heart failure present
B) Elevated; suggests heart failure with fluid overload
C) The test is unreliable in obese patients
D) BNP decreases as heart failure worsens
Correct Answer: B
Rationale: BNP is elevated (normal <100 pg/mL) when ventricular stretch increases due to heart
failure and fluid overload. The test can be affected by obesity (making interpretation challenging),
with multiple choice questions with
verified answers and rationale
updated 2026 graded A+
QUESTION 1
A nurse is reviewing the pathophysiology of heart failure. Which statement best describes the Frank-
Starling mechanism?
A) Heart muscle contracts more forcefully when stretched within physiologic limits
B) Increased sympathetic stimulation always improves cardiac output
C) The heart rate increases to compensate for decreased contractility
D) Ventricular compliance increases with age
Correct Answer: A
Rationale: The Frank-Starling mechanism describes the relationship between ventricular filling
(preload) and the force of contraction. Within physiologic limits, increased stretch of cardiac muscle
fibers leads to stronger contraction due to optimal overlap of actin and myosin filaments. Options B,
C, and D are either false or represent different compensatory mechanisms rather than the Frank-
Starling law itself.
QUESTION 2
A 65-year-old patient with systolic heart failure is prescribed an ACE inhibitor. Which physiologic
mechanism explains the benefit of this medication?
A) Decreases afterload and reduces aldosterone secretion
B) Increases heart rate to improve cardiac output
C) Promotes fluid retention to increase preload
D) Increases angiotensin II production
Correct Answer: A
,Rationale: ACE inhibitors block the conversion of angiotensin I to angiotensin II, which reduces
systemic vasoconstriction (decreasing afterload) and inhibits aldosterone secretion (reducing fluid
retention). This reduces the workload on the failing heart and helps prevent remodeling. Options B,
C, and D are incorrect mechanisms of ACE inhibitor action.
QUESTION 3
A nurse assesses a patient with acute decompensated heart failure. Which finding would the nurse
expect to observe?
A) Decreased jugular venous pressure
B) Orthopnea and paroxysmal nocturnal dyspnea
C) Decreased S3 gallop
D) Warm, dry skin with good perfusion
Correct Answer: B
Rationale: In heart failure with pulmonary congestion, fluid backs up into the lungs causing
orthopnea (shortness of breath when lying flat) and paroxysmal nocturnal dyspnea (sudden
nighttime awakening with dyspnea). An S3 gallop is present (not decreased), JVP would be elevated
(not decreased), and skin would be cool and clammy due to decreased perfusion.
QUESTION 4
Which compensatory mechanism in chronic heart failure eventually becomes maladaptive?
A) Increased contractility from sympathetic stimulation
B) Ventricular remodeling and hypertrophy
C) Increased heart rate
D) Peripheral vasoconstriction
Correct Answer: B
Rationale: While ventricular hypertrophy initially helps maintain cardiac output, chronic remodeling
leads to chamber dilation, fibrosis, and impaired function—ultimately worsening the disease.
,Sympathetic stimulation, tachycardia, and vasoconstriction are also maladaptive long-term, but
ventricular remodeling is the most significant structural consequence that perpetuates heart failure
progression.
QUESTION 5
A patient presents with signs of right ventricular failure. Which assessment finding would
differentiate right-sided heart failure?
A) Pulmonary edema and orthopnea
B) Peripheral edema, hepatomegaly, and elevated JVP
C) Decreased cardiac output with cool extremities
D) Increased preload with decreased afterload
Correct Answer: B
Rationale: Right ventricular failure causes backward blood flow into the systemic venous circulation,
resulting in peripheral edema, hepatomegaly, and elevated jugular venous pressure. Pulmonary
edema and orthopnea are characteristic of left-sided heart failure. Options C and D are vague
descriptions without specific right heart failure features.
QUESTION 6
A nurse is educating a heart failure patient about sodium restriction. Which rationale best explains
why sodium restriction is important?
A) Sodium decreases blood viscosity
B) Sodium promotes water retention, increasing preload and cardiac workload
C) Sodium increases myocardial contractility
D) Sodium prevents arrhythmias
Correct Answer: B
Rationale: Sodium is osmotically active and promotes water retention in the body. In heart failure,
fluid overload increases preload and ventricular wall stress, worsening symptoms. Restricting sodium
, intake reduces fluid retention and decreases the workload on the failing heart. Options A, C, and D
are incorrect physiologic explanations.
QUESTION 7
Which medication class directly improves outcomes in systolic heart failure by reducing ventricular
remodeling?
A) Beta-blockers and ACE inhibitors
B) Diuretics and inotropes
C) Vasodilators and calcium channel blockers
D) Nitrates and hydralazine
Correct Answer: A
Rationale: Beta-blockers and ACE inhibitors have been shown to reduce mortality and slow
ventricular remodeling in systolic heart failure through neurohormonal antagonism. Diuretics and
inotropes improve symptoms but don't prevent remodeling. Vasodilators, calcium channel blockers,
nitrates, and hydralazine may relieve symptoms but lack the evidence for mortality benefit in systolic
dysfunction.
QUESTION 8
A patient with heart failure has a BNP (B-type natriuretic peptide) level of 450 pg/mL. Which
interpretation is correct?
A) Normal result; no heart failure present
B) Elevated; suggests heart failure with fluid overload
C) The test is unreliable in obese patients
D) BNP decreases as heart failure worsens
Correct Answer: B
Rationale: BNP is elevated (normal <100 pg/mL) when ventricular stretch increases due to heart
failure and fluid overload. The test can be affected by obesity (making interpretation challenging),
