NR 565 ADVANCED PHARMACOLOGY FINAL EXAM TEST
BANK: 200+ EVIDENCE-BASED MCQS WITH DETAILED
RATIONALES | CHAMBERLAIN UNIVERSITY MSN/FNP |
2026-2027 CURRICULUM
1. A patient with a history of heart failure and reduced ejection
fraction is prescribed sacubitril/valsartan. Which mechanism of action
best describes the therapeutic benefit of this medication?
A) It inhibits the angiotensin-converting enzyme and blocks calcium
channels.
B) It combines a neprilysin inhibitor with an angiotensin II receptor
blocker to enhance vasodilation.
C) It acts as a potent diuretic and a beta-1 selective antagonist.
D) It stimulates aldosterone receptors while inhibiting renin release.
CORRECT ANSWER: B
Rationale: Sacubitril/valsartan is a combination of a neprilysin inhibitor
(sacubitril) and an angiotensin II receptor blocker (valsartan). Neprilysin
inhibition prevents the breakdown of natriuretic peptides, leading to
increased vasodilation, natriuresis, and reduced sympathetic tone,
while valsartan blocks the deleterious effects of angiotensin II. It is
indicated to reduce the risk of cardiovascular death and hospitalization
for heart failure in patients with chronic heart failure.
2. A 72-year-old patient with renal impairment (eGFR 25 mL/min) is
prescribed apixaban for atrial fibrillation. What is the MOST
,appropriate adjustment to their dosing regimen?
A) No dosage adjustment is required.
B) Reduce the dose to 2.5 mg twice daily.
C) Increase the dose to 10 mg twice daily.
D) Switch to warfarin for better renal clearance.
CORRECT ANSWER: B
Rationale: Apixaban is partially cleared by the kidneys. For patients with
nonvalvular atrial fibrillation and at least two of the following
characteristics: age 80 years or older, body weight 60 kg or less, or
serum creatinine 1.5 mg/dL or greater, the recommended dose is 2.5
mg twice daily. Since the patient's eGFR is 25 mL/min, they meet at
least one criterion (renal impairment) and likely qualify for the reduced
dose based on age or weight, necessitating careful assessment for the
2.5 mg BID dose.
3. A 45-year-old female presents with a new diagnosis of type 2
diabetes mellitus. Her HbA1c is 7.8%. She has a BMI of 34 and no
contraindications to pharmacotherapy. Which medication is the MOST
appropriate first-line agent?
A) Glipizide
B) Insulin glargine
C) Metformin
D) Empagliflozin
CORRECT ANSWER: C
Rationale: Metformin is the recommended first-line pharmacologic
therapy for type 2 diabetes mellitus, alongside lifestyle modifications,
unless contraindicated (e.g., severe renal impairment). It improves
insulin sensitivity, decreases hepatic glucose production, and does not
,cause hypoglycemia or weight gain, making it ideal for a patient with
obesity.
4. A 60-year-old male with asthma and hypertension requires a beta-
blocker. Which agent is the SAFEST choice for this patient?
A) Propranolol
B) Metoprolol succinate
C) Carvedilol
D) Atenolol
CORRECT ANSWER: B
Rationale: Nonselective beta-blockers (propranolol, carvedilol) can
cause bronchoconstriction by blocking beta-2 receptors in the lungs and
are generally contraindicated in asthma. Beta-1 selective blockers like
metoprolol succinate are preferred, though they should still be used
cautiously. Atenolol is also beta-1 selective but metoprolol succinate is
often preferred for its extended-release formulation and cardiovascular
outcomes data.
5. A patient on warfarin therapy has an INR of 6.5 but is not actively
bleeding. Which intervention is MOST appropriate?
A) Administer intravenous vitamin K.
B) Administer fresh frozen plasma.
C) Hold the next dose and monitor the INR.
D) Administer protamine sulfate.
CORRECT ANSWER: C
Rationale: For an INR of 6.5 without bleeding, the recommended
management is to hold the next dose of warfarin and monitor the INR
closely. Vitamin K is generally reserved for serious bleeding or an INR
greater than 10, or if the patient requires an urgent invasive procedure.
Protamine sulfate is the antidote for heparin, not warfarin.
, 6. A 55-year-old patient is prescribed levothyroxine for
hypothyroidism. Which instruction should the nurse practitioner
provide to ensure optimal absorption?
A) Take the medication with breakfast to avoid GI upset.
B) Take the medication at bedtime with a calcium supplement.
C) Take the medication on an empty stomach 30-60 minutes before
breakfast.
D) Take the medication with an antacid to prevent heartburn.
CORRECT ANSWER: C
Rationale: Levothyroxine absorption is significantly affected by food and
other medications. It should be taken on an empty stomach, 30 to 60
minutes before breakfast, with water. Calcium, iron, and antacids can
bind to levothyroxine and decrease its absorption and must be
separated by at least 4 hours.
7. A patient presents with a severe allergic reaction and is
administered diphenhydramine. Which side effect is the patient MOST
likely to experience?
A) Diarrhea
B) Sedation
C) Hypertension
D) Tachycardia
CORRECT ANSWER: B
Rationale: Diphenhydramine is a first-generation H1-antihistamine.
Because it crosses the blood-brain barrier and blocks central histamine
receptors, it commonly causes sedation, drowsiness, and impaired
cognitive function. It also has anticholinergic effects such as dry mouth
and urinary retention.
BANK: 200+ EVIDENCE-BASED MCQS WITH DETAILED
RATIONALES | CHAMBERLAIN UNIVERSITY MSN/FNP |
2026-2027 CURRICULUM
1. A patient with a history of heart failure and reduced ejection
fraction is prescribed sacubitril/valsartan. Which mechanism of action
best describes the therapeutic benefit of this medication?
A) It inhibits the angiotensin-converting enzyme and blocks calcium
channels.
B) It combines a neprilysin inhibitor with an angiotensin II receptor
blocker to enhance vasodilation.
C) It acts as a potent diuretic and a beta-1 selective antagonist.
D) It stimulates aldosterone receptors while inhibiting renin release.
CORRECT ANSWER: B
Rationale: Sacubitril/valsartan is a combination of a neprilysin inhibitor
(sacubitril) and an angiotensin II receptor blocker (valsartan). Neprilysin
inhibition prevents the breakdown of natriuretic peptides, leading to
increased vasodilation, natriuresis, and reduced sympathetic tone,
while valsartan blocks the deleterious effects of angiotensin II. It is
indicated to reduce the risk of cardiovascular death and hospitalization
for heart failure in patients with chronic heart failure.
2. A 72-year-old patient with renal impairment (eGFR 25 mL/min) is
prescribed apixaban for atrial fibrillation. What is the MOST
,appropriate adjustment to their dosing regimen?
A) No dosage adjustment is required.
B) Reduce the dose to 2.5 mg twice daily.
C) Increase the dose to 10 mg twice daily.
D) Switch to warfarin for better renal clearance.
CORRECT ANSWER: B
Rationale: Apixaban is partially cleared by the kidneys. For patients with
nonvalvular atrial fibrillation and at least two of the following
characteristics: age 80 years or older, body weight 60 kg or less, or
serum creatinine 1.5 mg/dL or greater, the recommended dose is 2.5
mg twice daily. Since the patient's eGFR is 25 mL/min, they meet at
least one criterion (renal impairment) and likely qualify for the reduced
dose based on age or weight, necessitating careful assessment for the
2.5 mg BID dose.
3. A 45-year-old female presents with a new diagnosis of type 2
diabetes mellitus. Her HbA1c is 7.8%. She has a BMI of 34 and no
contraindications to pharmacotherapy. Which medication is the MOST
appropriate first-line agent?
A) Glipizide
B) Insulin glargine
C) Metformin
D) Empagliflozin
CORRECT ANSWER: C
Rationale: Metformin is the recommended first-line pharmacologic
therapy for type 2 diabetes mellitus, alongside lifestyle modifications,
unless contraindicated (e.g., severe renal impairment). It improves
insulin sensitivity, decreases hepatic glucose production, and does not
,cause hypoglycemia or weight gain, making it ideal for a patient with
obesity.
4. A 60-year-old male with asthma and hypertension requires a beta-
blocker. Which agent is the SAFEST choice for this patient?
A) Propranolol
B) Metoprolol succinate
C) Carvedilol
D) Atenolol
CORRECT ANSWER: B
Rationale: Nonselective beta-blockers (propranolol, carvedilol) can
cause bronchoconstriction by blocking beta-2 receptors in the lungs and
are generally contraindicated in asthma. Beta-1 selective blockers like
metoprolol succinate are preferred, though they should still be used
cautiously. Atenolol is also beta-1 selective but metoprolol succinate is
often preferred for its extended-release formulation and cardiovascular
outcomes data.
5. A patient on warfarin therapy has an INR of 6.5 but is not actively
bleeding. Which intervention is MOST appropriate?
A) Administer intravenous vitamin K.
B) Administer fresh frozen plasma.
C) Hold the next dose and monitor the INR.
D) Administer protamine sulfate.
CORRECT ANSWER: C
Rationale: For an INR of 6.5 without bleeding, the recommended
management is to hold the next dose of warfarin and monitor the INR
closely. Vitamin K is generally reserved for serious bleeding or an INR
greater than 10, or if the patient requires an urgent invasive procedure.
Protamine sulfate is the antidote for heparin, not warfarin.
, 6. A 55-year-old patient is prescribed levothyroxine for
hypothyroidism. Which instruction should the nurse practitioner
provide to ensure optimal absorption?
A) Take the medication with breakfast to avoid GI upset.
B) Take the medication at bedtime with a calcium supplement.
C) Take the medication on an empty stomach 30-60 minutes before
breakfast.
D) Take the medication with an antacid to prevent heartburn.
CORRECT ANSWER: C
Rationale: Levothyroxine absorption is significantly affected by food and
other medications. It should be taken on an empty stomach, 30 to 60
minutes before breakfast, with water. Calcium, iron, and antacids can
bind to levothyroxine and decrease its absorption and must be
separated by at least 4 hours.
7. A patient presents with a severe allergic reaction and is
administered diphenhydramine. Which side effect is the patient MOST
likely to experience?
A) Diarrhea
B) Sedation
C) Hypertension
D) Tachycardia
CORRECT ANSWER: B
Rationale: Diphenhydramine is a first-generation H1-antihistamine.
Because it crosses the blood-brain barrier and blocks central histamine
receptors, it commonly causes sedation, drowsiness, and impaired
cognitive function. It also has anticholinergic effects such as dry mouth
and urinary retention.
