NUR 254 ADVANCED PHARMACOLOGY
EXAM 3 ULTIMATE STUDY GUIDE &
TEST BANK
This comprehensive pharmacology and nursing practice test bank features
highly relevant multiple-choice questions complete with italicised answers
and bolded rationales. It perfectly aligns with advanced clinical nursing
curriculums, covering critical topics from cardiovascular and endocrine
drugs to complex antimicrobial therapies. Optimized for direct study or
mock exam preparation, this high-yield resource ensures student success
on challenging nursing exams.
1. A patient is prescribed digoxin for heart
failure. Which laboratory value should the nurse
monitor most closely to prevent digoxin toxicity?
A) Sodium 138 mEq/L
B) Potassium 3.2 mEq/L
C) Calcium 9.5 mg/dL
D) Magnesium 2.0 mEq/L
Answer: B) Potassium 3.2 mEq/L
Rationale: Hypokalemia predisposes the
myocardium to digoxin toxicity because
potassium and digoxin compete for the same
binding sites on the Na+/K+ ATPase pump. A
potassium level below 3.5 mEq/L requires
immediate intervention.
2. A nurse is preparing to administer sublingual
nitroglycerin to a patient with acute angina. What
,is the most critical assessment before
administration?
A) Respiratory rate
B) Blood pressure
C) Radial pulse
D) Temperature
Answer: B) Blood pressure
Rationale: Nitroglycerin is a potent vasodilator
that can cause severe hypotension. The nurse
must hold the medication and notify the provider
if the systolic blood pressure is below 90 mm
Hg.
3. Which medication should the nurse anticipate
administering as an antidote for a patient
experiencing a severe heparin overdose?
A) Vitamin K
B) Protamine sulfate
C) Acetylcysteine
D) Flumazenil
Answer: B) Protamine sulfate
Rationale: Protamine sulfate binds to heparin to
form a stable salt pair, neutralizing its
anticoagulant effects. Vitamin K is the antidote
for warfarin, acetylcysteine for acetaminophen,
and flumazenil for benzodiazepines.
,4. A patient starting atorvastatin therapy reports
new-onset, unexplained muscle pain and
weakness. Which lab test should the nurse
anticipate?
A) Blood urea nitrogen (BUN)
B) Creatinine kinase (CK)
C) Amylase
D) Prothrombin time (PT)
Answer: B) Creatinine kinase (CK)
Rationale: Statins can cause myopathy, which
may progress to rhabdomyolysis—a life-
threatening breakdown of muscle tissue.
Elevated CK levels confirm muscle injury.
5. What is the primary therapeutic mechanism of
action of a beta-blocker like metoprolol?
A) Increasing myocardial contractility
B) Decreasing heart rate and cardiac workload
C) Dilating coronary arteries directly
D) Increasing conduction velocity through the AV
node
Answer: B) Decreasing heart rate and cardiac
workload
Rationale: Beta-blockers antagonize beta-1
adrenergic receptors in the heart, decreasing
, heart rate, blood pressure, and myocardial
oxygen demand.
6. A patient is receiving a continuous
intravenous infusion of nitroprusside. The nurse
monitors the patient closely for signs of which
toxic compilation?
A) Cyanide toxicity
B) Ototoxicity
C) Nephrotoxicity
D) Cardiotoxicity
Answer: A) Cyanide toxicity
Rationale: Nitroprusside is metabolized into
thiocyanate and cyanide. Prolonged infusions or
high doses can cause cyanide toxicity,
manifested by altered mental status, metabolic
acidosis, and profound hypotension.
7. A nurse is teaching a patient about a new
prescription for spironolactone. Which dietary
instruction is most important?
A) Increase consumption of bananas and spinach
B) Avoid salt substitutes containing potassium
C) Maintain a high-sodium diet
D) Restrict fluids to 1 liter per day
Answer: B) Avoid salt substitutes containing
potassium
EXAM 3 ULTIMATE STUDY GUIDE &
TEST BANK
This comprehensive pharmacology and nursing practice test bank features
highly relevant multiple-choice questions complete with italicised answers
and bolded rationales. It perfectly aligns with advanced clinical nursing
curriculums, covering critical topics from cardiovascular and endocrine
drugs to complex antimicrobial therapies. Optimized for direct study or
mock exam preparation, this high-yield resource ensures student success
on challenging nursing exams.
1. A patient is prescribed digoxin for heart
failure. Which laboratory value should the nurse
monitor most closely to prevent digoxin toxicity?
A) Sodium 138 mEq/L
B) Potassium 3.2 mEq/L
C) Calcium 9.5 mg/dL
D) Magnesium 2.0 mEq/L
Answer: B) Potassium 3.2 mEq/L
Rationale: Hypokalemia predisposes the
myocardium to digoxin toxicity because
potassium and digoxin compete for the same
binding sites on the Na+/K+ ATPase pump. A
potassium level below 3.5 mEq/L requires
immediate intervention.
2. A nurse is preparing to administer sublingual
nitroglycerin to a patient with acute angina. What
,is the most critical assessment before
administration?
A) Respiratory rate
B) Blood pressure
C) Radial pulse
D) Temperature
Answer: B) Blood pressure
Rationale: Nitroglycerin is a potent vasodilator
that can cause severe hypotension. The nurse
must hold the medication and notify the provider
if the systolic blood pressure is below 90 mm
Hg.
3. Which medication should the nurse anticipate
administering as an antidote for a patient
experiencing a severe heparin overdose?
A) Vitamin K
B) Protamine sulfate
C) Acetylcysteine
D) Flumazenil
Answer: B) Protamine sulfate
Rationale: Protamine sulfate binds to heparin to
form a stable salt pair, neutralizing its
anticoagulant effects. Vitamin K is the antidote
for warfarin, acetylcysteine for acetaminophen,
and flumazenil for benzodiazepines.
,4. A patient starting atorvastatin therapy reports
new-onset, unexplained muscle pain and
weakness. Which lab test should the nurse
anticipate?
A) Blood urea nitrogen (BUN)
B) Creatinine kinase (CK)
C) Amylase
D) Prothrombin time (PT)
Answer: B) Creatinine kinase (CK)
Rationale: Statins can cause myopathy, which
may progress to rhabdomyolysis—a life-
threatening breakdown of muscle tissue.
Elevated CK levels confirm muscle injury.
5. What is the primary therapeutic mechanism of
action of a beta-blocker like metoprolol?
A) Increasing myocardial contractility
B) Decreasing heart rate and cardiac workload
C) Dilating coronary arteries directly
D) Increasing conduction velocity through the AV
node
Answer: B) Decreasing heart rate and cardiac
workload
Rationale: Beta-blockers antagonize beta-1
adrenergic receptors in the heart, decreasing
, heart rate, blood pressure, and myocardial
oxygen demand.
6. A patient is receiving a continuous
intravenous infusion of nitroprusside. The nurse
monitors the patient closely for signs of which
toxic compilation?
A) Cyanide toxicity
B) Ototoxicity
C) Nephrotoxicity
D) Cardiotoxicity
Answer: A) Cyanide toxicity
Rationale: Nitroprusside is metabolized into
thiocyanate and cyanide. Prolonged infusions or
high doses can cause cyanide toxicity,
manifested by altered mental status, metabolic
acidosis, and profound hypotension.
7. A nurse is teaching a patient about a new
prescription for spironolactone. Which dietary
instruction is most important?
A) Increase consumption of bananas and spinach
B) Avoid salt substitutes containing potassium
C) Maintain a high-sodium diet
D) Restrict fluids to 1 liter per day
Answer: B) Avoid salt substitutes containing
potassium
