1
, NUR 6121 Exam 3 | (2026) Nursing Exam
Questions | Practice II (PDF)
1. A 68-year-old male presents with crushing substernal
chest pain radiating to the jaw. ECG shows ST elevation
in leads V1–V4. Which diagnosis is most likely?
A. Inferior STEMI
B. Anteroseptal STEMI
C. Lateral STEMI
D. Posterior STEMI
Answer: B. Anteroseptal STEMI
Rationale: ST elevation in V1–V4 indicates anteroseptal
wall involvement, usually due to left anterior descending
artery occlusion.
2. Which medication is contraindicated in the acute phase
of a right ventricular infarction?
A. Aspirin
B. Nitroglycerin
2
,C. Morphine
D. Oxygen
Answer: B. Nitroglycerin
Rationale: Nitroglycerin reduces preload, which can cause
severe hypotension in right ventricular infarction where
preload is critical.
3. A patient with heart failure has an ejection fraction of
35%. Which medication class is first-line for mortality
reduction?
A. Loop diuretics
B. Beta-blockers
C. Digoxin
D. Calcium channel blockers
Answer: B. Beta-blockers
Rationale: Beta-blockers (carvedilol, metoprolol succinate,
bisoprolol) reduce mortality and hospitalizations in HFrEF.
4. What is the most common cause of infective
endocarditis in IV drug users?
3
, A. Streptococcus viridans k
B. Staphylococcus aureus k
C. Enterococcus faecalis k
D. Candida albicans k
Answer: B. Staphylococcus aureus
k k k
Rationale: S. aureus is the leading cause in IV drug users, often
k k k k k k k k k k k
k affecting the tricuspid valve. k k k
5. A patient with hypertension and diabetes has a BP of
k k k k k k k k k
k 148/90 mmHg. What is the initial treatment?
k k k k k k
A. Hydrochlorothiazide alone k
B. ACE inhibitor or ARB
k k k
C. Beta-blocker
D. No treatment, recheck in 1 year
k k k k k
k Answer: B. ACE inhibitor or ARB
k k k k k
Rationale: ACEi/ARBs are preferred in diabetics due to
k k k k k k k
k renoprotective effects. k
6. Which ECG finding is diagnostic for pericarditis?
k k k k k k
A. Wide QRS complexes k k
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, NUR 6121 Exam 3 | (2026) Nursing Exam
Questions | Practice II (PDF)
1. A 68-year-old male presents with crushing substernal
chest pain radiating to the jaw. ECG shows ST elevation
in leads V1–V4. Which diagnosis is most likely?
A. Inferior STEMI
B. Anteroseptal STEMI
C. Lateral STEMI
D. Posterior STEMI
Answer: B. Anteroseptal STEMI
Rationale: ST elevation in V1–V4 indicates anteroseptal
wall involvement, usually due to left anterior descending
artery occlusion.
2. Which medication is contraindicated in the acute phase
of a right ventricular infarction?
A. Aspirin
B. Nitroglycerin
2
,C. Morphine
D. Oxygen
Answer: B. Nitroglycerin
Rationale: Nitroglycerin reduces preload, which can cause
severe hypotension in right ventricular infarction where
preload is critical.
3. A patient with heart failure has an ejection fraction of
35%. Which medication class is first-line for mortality
reduction?
A. Loop diuretics
B. Beta-blockers
C. Digoxin
D. Calcium channel blockers
Answer: B. Beta-blockers
Rationale: Beta-blockers (carvedilol, metoprolol succinate,
bisoprolol) reduce mortality and hospitalizations in HFrEF.
4. What is the most common cause of infective
endocarditis in IV drug users?
3
, A. Streptococcus viridans k
B. Staphylococcus aureus k
C. Enterococcus faecalis k
D. Candida albicans k
Answer: B. Staphylococcus aureus
k k k
Rationale: S. aureus is the leading cause in IV drug users, often
k k k k k k k k k k k
k affecting the tricuspid valve. k k k
5. A patient with hypertension and diabetes has a BP of
k k k k k k k k k
k 148/90 mmHg. What is the initial treatment?
k k k k k k
A. Hydrochlorothiazide alone k
B. ACE inhibitor or ARB
k k k
C. Beta-blocker
D. No treatment, recheck in 1 year
k k k k k
k Answer: B. ACE inhibitor or ARB
k k k k k
Rationale: ACEi/ARBs are preferred in diabetics due to
k k k k k k k
k renoprotective effects. k
6. Which ECG finding is diagnostic for pericarditis?
k k k k k k
A. Wide QRS complexes k k
4
