NR566 FINAL EXAM 2026 – ADVANCED
PHARMACOLOGY FOR CARE OF THE FAMILY
(CHAMBERLAIN) | VERIFIED QUESTIONS,
CORRECT ANSWERS & DETAILED RATIONALES |
A+ GRADED
NR566 FINAL EXAM 2026 – ADVANCED PHARMACOLOGY FOR CARE OF THE
FAMILY
• This document contains 295 verified exam-style questions with highlighted
CORRECT ANSWER and detailed EXPERT RATIONALE to reinforce clinical reasoning
and pharmacology mastery. • Use this material by attempting each question
independently before reviewing the CORRECT ANSWER and EXPERT RATIONALE
for maximum retention and exam readiness.
QUESTION 1
A nurse practitioner is prescribing metformin for a patient with type 2 diabetes.
Which of the following is the primary mechanism of action of metformin?
A. Stimulates pancreatic beta cells to release insulin
B. Inhibits alpha-glucosidase enzymes in the intestine
C. Decreases hepatic glucose production and improves insulin sensitivity
D. Blocks renal glucose reabsorption via SGLT-2 inhibition
E. Increases incretin hormone levels by inhibiting DPP-4
✦ CORRECT ANSWER: C ✦ EXPERT RATIONALE: Metformin works primarily by
suppressing hepatic gluconeogenesis and improving peripheral insulin sensitivity. It
does not stimulate insulin secretion and carries no risk of hypoglycemia when used
as monotherapy.
QUESTION 2
,A patient on warfarin therapy is started on ciprofloxacin. What is the expected drug
interaction?
A. Decreased absorption of warfarin from the GI tract
B. Increased renal clearance of warfarin
C. Decreased synthesis of vitamin K-dependent clotting factors
D. Inhibition of CYP2C9 leading to increased warfarin levels and bleeding
risk
E. Enhanced platelet aggregation potentiating clot formation
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Ciprofloxacin inhibits CYP2C9, the
primary enzyme responsible for warfarin metabolism. This inhibition raises
warfarin plasma levels, significantly increasing the risk of bleeding. INR should be
monitored closely when these drugs are co-administered.
QUESTION 3
Which of the following beta-blockers is most cardioselective and preferred in a
patient with mild asthma requiring treatment for hypertension?
A. Carvedilol
B. Propranolol
C. Labetalol
D. Nadolol
E. Metoprolol succinate
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Metoprolol succinate is a beta-1
selective blocker, making it preferred in patients with reactive airway disease. It has
minimal effects on beta-2 receptors in the lungs at therapeutic doses, reducing the
risk of bronchospasm compared to non-selective agents.
QUESTION 4
,A 65-year-old male with BPH and hypertension is being initiated on
pharmacotherapy. Which drug class addresses both conditions simultaneously?
A. ACE inhibitors
B. Calcium channel blockers
C. Thiazide diuretics
D. Beta-blockers
E. Alpha-1 blockers (e.g., terazosin)
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Alpha-1 blockers such as terazosin
and doxazosin relax smooth muscle in both the prostate and peripheral
vasculature, effectively treating BPH symptoms while lowering blood pressure —
addressing both conditions with a single agent.
QUESTION 5
A patient with heart failure with reduced ejection fraction (HFrEF) is prescribed
sacubitril/valsartan. What is the mechanism of sacubitril?
A. Blocks aldosterone receptors in the kidney
B. Inhibits angiotensin-converting enzyme
C. Blocks angiotensin II type 1 receptors
D. Inhibits neprilysin, preventing breakdown of natriuretic peptides
E. Activates beta-1 adrenergic receptors in the heart
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Sacubitril is a neprilysin inhibitor.
Neprilysin is responsible for degrading natriuretic peptides. By inhibiting it,
sacubitril increases levels of BNP and ANP, promoting vasodilation, natriuresis, and
reduced cardiac remodeling in HFrEF.
QUESTION 6
, Which of the following medications requires monitoring of serum potassium levels
due to the highest risk of hyperkalemia?
A. Furosemide
B. Hydrochlorothiazide
C. Amlodipine
D. Metoprolol
E. Spironolactone
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Spironolactone is a potassium-
sparing diuretic that blocks aldosterone receptors, leading to potassium retention.
Regular monitoring of serum potassium is essential, especially in patients with
renal impairment or those taking ACE inhibitors or ARBs.
QUESTION 7
A patient diagnosed with community-acquired pneumonia has a penicillin allergy.
Which antibiotic is most appropriate?
A. Amoxicillin-clavulanate
B. Ampicillin
C. Cefazolin
D. Azithromycin
E. Piperacillin-tazobactam
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Azithromycin is a macrolide
antibiotic that provides excellent coverage for atypical organisms commonly
causing CAP and is safe in patients with penicillin allergy. It is a first-line outpatient
treatment for CAP in patients without comorbidities.
QUESTION 8
PHARMACOLOGY FOR CARE OF THE FAMILY
(CHAMBERLAIN) | VERIFIED QUESTIONS,
CORRECT ANSWERS & DETAILED RATIONALES |
A+ GRADED
NR566 FINAL EXAM 2026 – ADVANCED PHARMACOLOGY FOR CARE OF THE
FAMILY
• This document contains 295 verified exam-style questions with highlighted
CORRECT ANSWER and detailed EXPERT RATIONALE to reinforce clinical reasoning
and pharmacology mastery. • Use this material by attempting each question
independently before reviewing the CORRECT ANSWER and EXPERT RATIONALE
for maximum retention and exam readiness.
QUESTION 1
A nurse practitioner is prescribing metformin for a patient with type 2 diabetes.
Which of the following is the primary mechanism of action of metformin?
A. Stimulates pancreatic beta cells to release insulin
B. Inhibits alpha-glucosidase enzymes in the intestine
C. Decreases hepatic glucose production and improves insulin sensitivity
D. Blocks renal glucose reabsorption via SGLT-2 inhibition
E. Increases incretin hormone levels by inhibiting DPP-4
✦ CORRECT ANSWER: C ✦ EXPERT RATIONALE: Metformin works primarily by
suppressing hepatic gluconeogenesis and improving peripheral insulin sensitivity. It
does not stimulate insulin secretion and carries no risk of hypoglycemia when used
as monotherapy.
QUESTION 2
,A patient on warfarin therapy is started on ciprofloxacin. What is the expected drug
interaction?
A. Decreased absorption of warfarin from the GI tract
B. Increased renal clearance of warfarin
C. Decreased synthesis of vitamin K-dependent clotting factors
D. Inhibition of CYP2C9 leading to increased warfarin levels and bleeding
risk
E. Enhanced platelet aggregation potentiating clot formation
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Ciprofloxacin inhibits CYP2C9, the
primary enzyme responsible for warfarin metabolism. This inhibition raises
warfarin plasma levels, significantly increasing the risk of bleeding. INR should be
monitored closely when these drugs are co-administered.
QUESTION 3
Which of the following beta-blockers is most cardioselective and preferred in a
patient with mild asthma requiring treatment for hypertension?
A. Carvedilol
B. Propranolol
C. Labetalol
D. Nadolol
E. Metoprolol succinate
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Metoprolol succinate is a beta-1
selective blocker, making it preferred in patients with reactive airway disease. It has
minimal effects on beta-2 receptors in the lungs at therapeutic doses, reducing the
risk of bronchospasm compared to non-selective agents.
QUESTION 4
,A 65-year-old male with BPH and hypertension is being initiated on
pharmacotherapy. Which drug class addresses both conditions simultaneously?
A. ACE inhibitors
B. Calcium channel blockers
C. Thiazide diuretics
D. Beta-blockers
E. Alpha-1 blockers (e.g., terazosin)
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Alpha-1 blockers such as terazosin
and doxazosin relax smooth muscle in both the prostate and peripheral
vasculature, effectively treating BPH symptoms while lowering blood pressure —
addressing both conditions with a single agent.
QUESTION 5
A patient with heart failure with reduced ejection fraction (HFrEF) is prescribed
sacubitril/valsartan. What is the mechanism of sacubitril?
A. Blocks aldosterone receptors in the kidney
B. Inhibits angiotensin-converting enzyme
C. Blocks angiotensin II type 1 receptors
D. Inhibits neprilysin, preventing breakdown of natriuretic peptides
E. Activates beta-1 adrenergic receptors in the heart
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Sacubitril is a neprilysin inhibitor.
Neprilysin is responsible for degrading natriuretic peptides. By inhibiting it,
sacubitril increases levels of BNP and ANP, promoting vasodilation, natriuresis, and
reduced cardiac remodeling in HFrEF.
QUESTION 6
, Which of the following medications requires monitoring of serum potassium levels
due to the highest risk of hyperkalemia?
A. Furosemide
B. Hydrochlorothiazide
C. Amlodipine
D. Metoprolol
E. Spironolactone
✦ CORRECT ANSWER: E ✦ EXPERT RATIONALE: Spironolactone is a potassium-
sparing diuretic that blocks aldosterone receptors, leading to potassium retention.
Regular monitoring of serum potassium is essential, especially in patients with
renal impairment or those taking ACE inhibitors or ARBs.
QUESTION 7
A patient diagnosed with community-acquired pneumonia has a penicillin allergy.
Which antibiotic is most appropriate?
A. Amoxicillin-clavulanate
B. Ampicillin
C. Cefazolin
D. Azithromycin
E. Piperacillin-tazobactam
✦ CORRECT ANSWER: D ✦ EXPERT RATIONALE: Azithromycin is a macrolide
antibiotic that provides excellent coverage for atypical organisms commonly
causing CAP and is safe in patients with penicillin allergy. It is a first-line outpatient
treatment for CAP in patients without comorbidities.
QUESTION 8
