NURS 5334 ADVANCED PHARMACOLOGY
FOR NURSE PRACTITIONERS – ORIGINAL
PRACTICE QUESTIONS AND ANSWERS |
DETAILED RATIONALES | EXAM PREP |
STUDY GUIDE | PRACTICE TEST
1. A 58-year-old patient with newly diagnosed hypertension and type 2
diabetes has a urine albumin-to-creatinine ratio of 120 mg/g. Which
antihypertensive medication is the most appropriate initial choice?
A. Hydrochlorothiazide
B. Lisinopril
C. Metoprolol
D. Amlodipine
RATIONALE: ACE inhibitors such as lisinopril reduce blood pressure while
slowing diabetic kidney disease progression by decreasing intraglomerular
pressure and albuminuria. Thiazides, beta-blockers, and calcium channel
blockers lower blood pressure but do not provide the same degree of renal
protection in patients with diabetic nephropathy.
2. Which pharmacokinetic parameter best describes the fraction of an
administered drug that reaches the systemic circulation unchanged?
A. Clearance
B. Half-life
C. Bioavailability
D. Volume of distribution
RATIONALE: Bioavailability is the proportion of a drug that reaches systemic
circulation in an active form. Clearance reflects drug elimination, half-life
indicates the time for plasma concentration to decrease by 50%, and volume
of distribution describes drug distribution throughout body tissues.
,3. A patient taking warfarin begins therapy with trimethoprim-
sulfamethoxazole. What is the nurse practitioner's primary concern?
A. Reduced anticoagulation effect
B. Increased risk of bleeding
C. Development of hypertension
D. Decreased antibiotic effectiveness
RATIONALE: Trimethoprim-sulfamethoxazole inhibits warfarin metabolism,
increasing the INR and significantly raising the risk of bleeding. Close INR
monitoring and warfarin dose adjustment are recommended.
4. A patient reports persistent dry cough after starting an ACE inhibitor.
Which medication is the most appropriate alternative?
A. Losartan
B. Atenolol
C. Verapamil
D. Clonidine
RATIONALE: Angiotensin receptor blockers provide similar cardiovascular and
renal benefits without increasing bradykinin levels, making them an excellent
alternative for patients who develop ACE inhibitor-induced cough.
5. Which factor is most likely to increase the free concentration of a highly
protein-bound medication?
A. Elevated serum albumin
B. Hypoalbuminemia
C. Increased renal blood flow
D. Increased gastric acidity
RATIONALE: Reduced albumin levels decrease protein binding, resulting in a
larger fraction of free, pharmacologically active drug and potentially
increasing toxicity.
,6. A patient with bacterial pneumonia has a documented history of
anaphylaxis to penicillin. Which antibiotic class should generally be avoided
because of potential cross-reactivity?
A. Macrolides
B. Fluoroquinolones
C. First-generation cephalosporins
D. Tetracyclines
RATIONALE: Although the absolute risk is relatively low, first-generation
cephalosporins share similar side chains with certain penicillins and may
increase the risk of allergic cross-reactivity in patients with severe penicillin
allergy.
7. Which receptor is primarily responsible for increasing heart rate and
myocardial contractility when stimulated?
A. Alpha-1 receptor
B. Beta-1 receptor
C. Beta-2 receptor
D. Muscarinic M2 receptor
RATIONALE: Beta-1 receptor stimulation increases heart rate, atrioventricular
conduction, and myocardial contractility. Alpha-1 receptors primarily cause
vasoconstriction, while beta-2 receptors mediate bronchodilation and
vasodilation.
8. A patient with chronic heart failure is prescribed spironolactone. Which
laboratory value requires the closest monitoring?
A. Sodium
B. Potassium
C. Calcium
D. Hemoglobin
, RATIONALE: Spironolactone is a potassium-sparing diuretic that may cause
hyperkalemia, particularly in patients with renal impairment or those taking
ACE inhibitors or ARBs.
9. A nurse practitioner prescribes metformin for a patient with newly
diagnosed type 2 diabetes. Which mechanism best explains its primary
glucose-lowering effect?
A. Increased pancreatic insulin secretion
B. Reduced hepatic glucose production
C. Increased intestinal glucose absorption
D. Stimulation of glucagon release
RATIONALE: Metformin primarily lowers blood glucose by suppressing hepatic
gluconeogenesis while also improving peripheral insulin sensitivity. It does not
stimulate insulin secretion, minimizing the risk of hypoglycemia when used
alone.
10. Before prescribing an opioid for acute pain, which assessment is most
important to reduce the risk of respiratory depression?
A. Hair color
B. Respiratory status and concurrent CNS depressant use
C. Blood type
D. Visual acuity
RATIONALE: Baseline respiratory assessment and evaluation for concurrent use
of benzodiazepines, alcohol, or other central nervous system depressants are
essential because these factors substantially increase the risk of opioid-
induced respiratory depression.
11. A 67-year-old patient with chronic kidney disease (eGFR 28 mL/min/1.73
m²) requires medication management for type 2 diabetes. Which oral
antihyperglycemic agent is generally contraindicated because of an increased
risk of lactic acidosis?
FOR NURSE PRACTITIONERS – ORIGINAL
PRACTICE QUESTIONS AND ANSWERS |
DETAILED RATIONALES | EXAM PREP |
STUDY GUIDE | PRACTICE TEST
1. A 58-year-old patient with newly diagnosed hypertension and type 2
diabetes has a urine albumin-to-creatinine ratio of 120 mg/g. Which
antihypertensive medication is the most appropriate initial choice?
A. Hydrochlorothiazide
B. Lisinopril
C. Metoprolol
D. Amlodipine
RATIONALE: ACE inhibitors such as lisinopril reduce blood pressure while
slowing diabetic kidney disease progression by decreasing intraglomerular
pressure and albuminuria. Thiazides, beta-blockers, and calcium channel
blockers lower blood pressure but do not provide the same degree of renal
protection in patients with diabetic nephropathy.
2. Which pharmacokinetic parameter best describes the fraction of an
administered drug that reaches the systemic circulation unchanged?
A. Clearance
B. Half-life
C. Bioavailability
D. Volume of distribution
RATIONALE: Bioavailability is the proportion of a drug that reaches systemic
circulation in an active form. Clearance reflects drug elimination, half-life
indicates the time for plasma concentration to decrease by 50%, and volume
of distribution describes drug distribution throughout body tissues.
,3. A patient taking warfarin begins therapy with trimethoprim-
sulfamethoxazole. What is the nurse practitioner's primary concern?
A. Reduced anticoagulation effect
B. Increased risk of bleeding
C. Development of hypertension
D. Decreased antibiotic effectiveness
RATIONALE: Trimethoprim-sulfamethoxazole inhibits warfarin metabolism,
increasing the INR and significantly raising the risk of bleeding. Close INR
monitoring and warfarin dose adjustment are recommended.
4. A patient reports persistent dry cough after starting an ACE inhibitor.
Which medication is the most appropriate alternative?
A. Losartan
B. Atenolol
C. Verapamil
D. Clonidine
RATIONALE: Angiotensin receptor blockers provide similar cardiovascular and
renal benefits without increasing bradykinin levels, making them an excellent
alternative for patients who develop ACE inhibitor-induced cough.
5. Which factor is most likely to increase the free concentration of a highly
protein-bound medication?
A. Elevated serum albumin
B. Hypoalbuminemia
C. Increased renal blood flow
D. Increased gastric acidity
RATIONALE: Reduced albumin levels decrease protein binding, resulting in a
larger fraction of free, pharmacologically active drug and potentially
increasing toxicity.
,6. A patient with bacterial pneumonia has a documented history of
anaphylaxis to penicillin. Which antibiotic class should generally be avoided
because of potential cross-reactivity?
A. Macrolides
B. Fluoroquinolones
C. First-generation cephalosporins
D. Tetracyclines
RATIONALE: Although the absolute risk is relatively low, first-generation
cephalosporins share similar side chains with certain penicillins and may
increase the risk of allergic cross-reactivity in patients with severe penicillin
allergy.
7. Which receptor is primarily responsible for increasing heart rate and
myocardial contractility when stimulated?
A. Alpha-1 receptor
B. Beta-1 receptor
C. Beta-2 receptor
D. Muscarinic M2 receptor
RATIONALE: Beta-1 receptor stimulation increases heart rate, atrioventricular
conduction, and myocardial contractility. Alpha-1 receptors primarily cause
vasoconstriction, while beta-2 receptors mediate bronchodilation and
vasodilation.
8. A patient with chronic heart failure is prescribed spironolactone. Which
laboratory value requires the closest monitoring?
A. Sodium
B. Potassium
C. Calcium
D. Hemoglobin
, RATIONALE: Spironolactone is a potassium-sparing diuretic that may cause
hyperkalemia, particularly in patients with renal impairment or those taking
ACE inhibitors or ARBs.
9. A nurse practitioner prescribes metformin for a patient with newly
diagnosed type 2 diabetes. Which mechanism best explains its primary
glucose-lowering effect?
A. Increased pancreatic insulin secretion
B. Reduced hepatic glucose production
C. Increased intestinal glucose absorption
D. Stimulation of glucagon release
RATIONALE: Metformin primarily lowers blood glucose by suppressing hepatic
gluconeogenesis while also improving peripheral insulin sensitivity. It does not
stimulate insulin secretion, minimizing the risk of hypoglycemia when used
alone.
10. Before prescribing an opioid for acute pain, which assessment is most
important to reduce the risk of respiratory depression?
A. Hair color
B. Respiratory status and concurrent CNS depressant use
C. Blood type
D. Visual acuity
RATIONALE: Baseline respiratory assessment and evaluation for concurrent use
of benzodiazepines, alcohol, or other central nervous system depressants are
essential because these factors substantially increase the risk of opioid-
induced respiratory depression.
11. A 67-year-old patient with chronic kidney disease (eGFR 28 mL/min/1.73
m²) requires medication management for type 2 diabetes. Which oral
antihyperglycemic agent is generally contraindicated because of an increased
risk of lactic acidosis?
