NR 567 Midterm Exam 2026/2027 |
Advanced Pharmacology for AGACNP |
Verified Questions & Answers | Chamberlain
University Grade A Study Guide
NR 567 MIDTERM EXAM 2026/2027
Advanced Pharmacology for AGACNP | Chamberlain University
DOCUMENT OVERVIEW
• This comprehensive study guide contains 200 verified multiple-choice questions
covering all major pharmacology topics tested on the NR 567 midterm examination,
designed to prepare AGACNP students with clinical application and evidence-based
pharmacological knowledge.
• Best utilized by studying 20-30 questions daily, reviewing EXPERT RATIONALE
thoroughly, and identifying weak content areas to focus supplemental learning and
strengthen mastery of drug classifications, mechanisms of action, adverse effects,
and clinical decision-making in acute care settings.
QUESTIONS & ANSWERS
Question 1:
A 65-year-old patient with hypertension is prescribed lisinopril. Which of the
following best describes the mechanism of action of ACE inhibitors?
A) Block beta-adrenergic receptors in the heart and blood vessels
B) Inhibit the conversion of angiotensin I to angiotensin II
C) Block calcium channels in vascular smooth muscle
D) Directly relax vascular smooth muscle through nitric oxide release
E) Inhibit aldosterone secretion in the adrenal glands
,CORRECT ANSWER: B) Inhibit the conversion of angiotensin I to angiotensin II
EXPERT RATIONALE: ACE (angiotensin-converting enzyme) inhibitors work by
blocking the enzyme that converts angiotensin I to angiotensin II, a potent
vasoconstrictor. This reduces vasoconstriction and decreases aldosterone
secretion, leading to lower blood pressure. Option A describes beta-blockers, C
describes calcium channel blockers, D describes nitrates, and E is incorrect because
ACE inhibitors do not directly inhibit aldosterone secretion but reduce it indirectly.
Question 2:
Which adverse effect is most commonly associated with ACE inhibitor use and
often leads to medication discontinuation?
A) Hypokalemia and increased potassium excretion
B) Persistent dry cough due to bradykinin accumulation
C) Severe hypoglycemia in diabetic patients
D) Acute liver failure requiring transplantation
E) Permanent loss of taste sensation
CORRECT ANSWER: B) Persistent dry cough due to bradykinin accumulation
EXPERT RATIONALE: A dry, persistent cough occurs in 10-20% of ACE inhibitor
users because these drugs block the degradation of bradykinin, which accumulates
and irritates airways. This is a class effect and is not dangerous but is bothersome
enough to cause discontinuation. ARBs do not cause this effect. Hypokalemia is
incorrect because ACE inhibitors cause hyperkalemia, not hypokalemia. Options D
and E are rare and not typical.
Question 3:
A patient on warfarin presents with an INR of 8.5. Which medication should
be AVOIDED as it would further increase INR?
A) Acetaminophen at standard doses
,B) Aspirin and NSAIDs
C) Amoxicillin
D) Omeprazole
E) All of the above increase INR
CORRECT ANSWER: B) Aspirin and NSAIDs
EXPERT RATIONALE: Aspirin and NSAIDs significantly increase bleeding risk when
combined with warfarin by inhibiting platelet function and potentially displacing
warfarin from protein binding. While amoxicillin and omeprazole can modestly
affect warfarin metabolism, aspirin and NSAIDs pose the most immediate and
serious risk. Acetaminophen is relatively safe at standard doses.
Question 4:
An 82-year-old patient with atrial fibrillation is started on dabigatran. What is
the primary advantage of direct thrombin inhibitors over warfarin?
A) They require daily INR monitoring to maintain therapeutic levels
B) They have predictable pharmacokinetics without need for monitoring
C) They are completely reversible with vitamin K administration
D) They are significantly less expensive than warfarin
E) They have no drug-drug interactions
CORRECT ANSWER: B) They have predictable pharmacokinetics without need
for monitoring
EXPERT RATIONALE: Direct thrombin inhibitors (DTIs) like dabigatran have
predictable pharmacokinetics and do not require routine coagulation monitoring
like warfarin does. Option A is false because DTIs don't require INR monitoring.
Option C is partially true but dabigatran now has a specific reversal agent
(idarucizumab). Option D is false as DTIs are more expensive. Option E is false as
DTIs do have some interactions.
, Question 5:
Which of the following is a key characteristic of beta-blockers that makes
them useful in post-MI patients?
A) They increase heart rate and cardiac contractility
B) They reduce myocardial oxygen demand by decreasing heart rate and
contractility
C) They directly dilate coronary arteries
D) They prevent clot formation by antiplatelet effects
E) They increase ejection fraction by positive inotropic effects
CORRECT ANSWER: B) They reduce myocardial oxygen demand by decreasing
heart rate and contractility
EXPERT RATIONALE: Beta-blockers reduce mortality post-MI by decreasing
myocardial oxygen consumption through reductions in heart rate, contractility, and
blood pressure. This is cardioprotective in the vulnerable post-MI period. Options A,
C, D, and E are incorrect regarding beta-blocker mechanisms.
Question 6:
A patient taking metoprolol develops fatigue and erectile dysfunction. Which
beta-blocker characteristic explains these side effects?
A) Beta-1 selectivity leading to bronchospasm
B) Non-selective beta blockade affecting peripheral vascular resistance
C) Blockade of beta-2 receptors in vascular smooth muscle causing vasodilation
D) Increased myocardial contractility causing cardiac fatigue
E) Direct CNS effects and peripheral vasodilation
Advanced Pharmacology for AGACNP |
Verified Questions & Answers | Chamberlain
University Grade A Study Guide
NR 567 MIDTERM EXAM 2026/2027
Advanced Pharmacology for AGACNP | Chamberlain University
DOCUMENT OVERVIEW
• This comprehensive study guide contains 200 verified multiple-choice questions
covering all major pharmacology topics tested on the NR 567 midterm examination,
designed to prepare AGACNP students with clinical application and evidence-based
pharmacological knowledge.
• Best utilized by studying 20-30 questions daily, reviewing EXPERT RATIONALE
thoroughly, and identifying weak content areas to focus supplemental learning and
strengthen mastery of drug classifications, mechanisms of action, adverse effects,
and clinical decision-making in acute care settings.
QUESTIONS & ANSWERS
Question 1:
A 65-year-old patient with hypertension is prescribed lisinopril. Which of the
following best describes the mechanism of action of ACE inhibitors?
A) Block beta-adrenergic receptors in the heart and blood vessels
B) Inhibit the conversion of angiotensin I to angiotensin II
C) Block calcium channels in vascular smooth muscle
D) Directly relax vascular smooth muscle through nitric oxide release
E) Inhibit aldosterone secretion in the adrenal glands
,CORRECT ANSWER: B) Inhibit the conversion of angiotensin I to angiotensin II
EXPERT RATIONALE: ACE (angiotensin-converting enzyme) inhibitors work by
blocking the enzyme that converts angiotensin I to angiotensin II, a potent
vasoconstrictor. This reduces vasoconstriction and decreases aldosterone
secretion, leading to lower blood pressure. Option A describes beta-blockers, C
describes calcium channel blockers, D describes nitrates, and E is incorrect because
ACE inhibitors do not directly inhibit aldosterone secretion but reduce it indirectly.
Question 2:
Which adverse effect is most commonly associated with ACE inhibitor use and
often leads to medication discontinuation?
A) Hypokalemia and increased potassium excretion
B) Persistent dry cough due to bradykinin accumulation
C) Severe hypoglycemia in diabetic patients
D) Acute liver failure requiring transplantation
E) Permanent loss of taste sensation
CORRECT ANSWER: B) Persistent dry cough due to bradykinin accumulation
EXPERT RATIONALE: A dry, persistent cough occurs in 10-20% of ACE inhibitor
users because these drugs block the degradation of bradykinin, which accumulates
and irritates airways. This is a class effect and is not dangerous but is bothersome
enough to cause discontinuation. ARBs do not cause this effect. Hypokalemia is
incorrect because ACE inhibitors cause hyperkalemia, not hypokalemia. Options D
and E are rare and not typical.
Question 3:
A patient on warfarin presents with an INR of 8.5. Which medication should
be AVOIDED as it would further increase INR?
A) Acetaminophen at standard doses
,B) Aspirin and NSAIDs
C) Amoxicillin
D) Omeprazole
E) All of the above increase INR
CORRECT ANSWER: B) Aspirin and NSAIDs
EXPERT RATIONALE: Aspirin and NSAIDs significantly increase bleeding risk when
combined with warfarin by inhibiting platelet function and potentially displacing
warfarin from protein binding. While amoxicillin and omeprazole can modestly
affect warfarin metabolism, aspirin and NSAIDs pose the most immediate and
serious risk. Acetaminophen is relatively safe at standard doses.
Question 4:
An 82-year-old patient with atrial fibrillation is started on dabigatran. What is
the primary advantage of direct thrombin inhibitors over warfarin?
A) They require daily INR monitoring to maintain therapeutic levels
B) They have predictable pharmacokinetics without need for monitoring
C) They are completely reversible with vitamin K administration
D) They are significantly less expensive than warfarin
E) They have no drug-drug interactions
CORRECT ANSWER: B) They have predictable pharmacokinetics without need
for monitoring
EXPERT RATIONALE: Direct thrombin inhibitors (DTIs) like dabigatran have
predictable pharmacokinetics and do not require routine coagulation monitoring
like warfarin does. Option A is false because DTIs don't require INR monitoring.
Option C is partially true but dabigatran now has a specific reversal agent
(idarucizumab). Option D is false as DTIs are more expensive. Option E is false as
DTIs do have some interactions.
, Question 5:
Which of the following is a key characteristic of beta-blockers that makes
them useful in post-MI patients?
A) They increase heart rate and cardiac contractility
B) They reduce myocardial oxygen demand by decreasing heart rate and
contractility
C) They directly dilate coronary arteries
D) They prevent clot formation by antiplatelet effects
E) They increase ejection fraction by positive inotropic effects
CORRECT ANSWER: B) They reduce myocardial oxygen demand by decreasing
heart rate and contractility
EXPERT RATIONALE: Beta-blockers reduce mortality post-MI by decreasing
myocardial oxygen consumption through reductions in heart rate, contractility, and
blood pressure. This is cardioprotective in the vulnerable post-MI period. Options A,
C, D, and E are incorrect regarding beta-blocker mechanisms.
Question 6:
A patient taking metoprolol develops fatigue and erectile dysfunction. Which
beta-blocker characteristic explains these side effects?
A) Beta-1 selectivity leading to bronchospasm
B) Non-selective beta blockade affecting peripheral vascular resistance
C) Blockade of beta-2 receptors in vascular smooth muscle causing vasodilation
D) Increased myocardial contractility causing cardiac fatigue
E) Direct CNS effects and peripheral vasodilation
