APEA Pharmacology Final Exam
(Latest 2026) with questions and
answers with rationales/graded
A+/2026 update/100% correct
Cardiovascular & Hematologic Pharmacology
1. A 62-year-old African American male with hypertension and stage 3 chronic
kidney disease (CKD) presents for follow-up. His BP is 148/90 mmHg. Which
antihypertensive regimen is MOST appropriate as first-line therapy given his
comorbid conditions?
• A) Hydrochlorothiazide 25 mg daily
• B) Lisinopril 10 mg daily
• C) Metoprolol 50 mg daily
• D) Amlodipine 5 mg daily
Correct Answer: B
Rationale: ACE inhibitors (like lisinopril) are first-line for hypertension,
especially in patients with CKD due to their renoprotective effects (reducing
intraglomerular pressure). While thiazides are first-line for general HTN, they are
less effective in advanced CKD (eGFR <30). Beta-blockers are not first-line
without another compelling indication. CCBs are options but do not provide the
same renal protection as RAAS blockade .
2. A patient with non-valvular atrial fibrillation (CHADS-VASc score of 4) is
currently taking warfarin. He asks about switching to apixaban (Eliquis) to
avoid dietary restrictions. What is a primary advantage of apixaban over
warfarin?
• A) No requirement for routine INR monitoring
, • B) Reversal agent is widely available over-the-counter
• C) Lower cost than warfarin
• D) Safe to use in mechanical heart valves
Correct Answer: A
Rationale: Direct Oral Anticoagulants (DOACs) like apixaban have predictable
pharmacokinetics and do not require routine INR monitoring. DOACs are
contraindicated in mechanical heart valves. Vitamin K is the reversal agent for
warfarin; Andexanet alfa is expensive and used for specific DOACs. Warfarin is
generally much cheaper .
3. Which medication is associated with the adverse effect of a persistent, dry,
hacking cough that resolves upon discontinuation?
• A) Losartan
• B) Lisinopril
• C) Metoprolol
• D) Amlodipine
Correct Answer: B
Rationale: Angiotensin-converting enzyme (ACE) inhibitors (lisinopril, enalapril)
commonly cause a dry cough due to the accumulation of bradykinin in the lungs.
ARBs (losartan) have a significantly lower incidence of cough. Beta-blockers
cause fatigue/bradycardia; CCBs cause edema .
4. A patient is prescribed furosemide (Lasix) 40 mg BID for heart failure.
Which laboratory finding requires the most immediate intervention?
• A) Sodium 135 mEq/L
• B) Creatinine 1.1 mg/dL
• C) Potassium 2.9 mEq/L
• D) BUN 18 mg/dL
Correct Answer: C
Rationale: Loop diuretics cause significant renal excretion of potassium, leading
to hypokalemia. A potassium of 2.9 mEq/L increases the risk of fatal cardiac
,arrhythmias (especially if the patient is also on Digoxin) and requires immediate
repletion .
5. A patient on Digoxin presents with nausea, vomiting, blurred vision (yellow
halos), and a heart rate of 45 bpm. Which electrolyte imbalance most likely
precipitated this toxicity?
• A) Hypernatremia
• B) Hypokalemia
• C) Hypercalcemia
• D) Hypomagnesemia
Correct Answer: B
Rationale: Hypokalemia increases the binding of digoxin to the sodium-potassium
ATPase pump, leading to toxicity even at normal serum levels. Low potassium
enhances the toxic effects of digoxin on cardiac conduction and automaticity.
6. Which of the following is the antidote of choice for a patient with life-
threatening bleeding due to apixaban (Eliquis)?
• A) Protamine Sulfate
• B) Vitamin K
• C) Andexanet alfa
• D) Naloxone
Correct Answer: C
Rationale: Andexanet alfa (Andexxa) is a recombinant modified human factor Xa
decoy protein that binds and sequesters apixaban and rivaroxaban. Protamine
reverses heparin. Vitamin K reverses warfarin.
Respiratory & Immunology
7. According to the 2026 GINA guidelines, what is the preferred reliever
medication for an adult with mild intermittent asthma?
• A) Low-dose ICS-formoterol (as needed)
• B) Albuterol (SABA) as needed
, • C) Oral montelukast daily
• D) High-dose ICS daily
Correct Answer: B
Rationale: While guidelines are shifting toward ICS-formoterol for mild persistent
asthma, for intermittent asthma (symptoms <2 days/week), as-needed short-acting
beta-agonist (SABA) such as albuterol remains the standard rescue therapy.
However, the search results emphasize that for persistent asthma, ICS-formoterol is
preferred to reduce severe exacerbations .
8. A patient with COPD and a history of frequent exacerbations is prescribed
tiotropium (Spiriva). What is the mechanism of action of this medication?
• A) Beta-2 agonist causing bronchodilation
• B) Long-acting muscarinic antagonist (LAMA)
• C) Phosphodiesterase-4 inhibitor
• D) Corticosteroid reducing airway inflammation
Correct Answer: B
Rationale: Tiotropium is a long-acting muscarinic antagonist (LAMA) that blocks
acetylcholine in bronchial smooth muscle, causing bronchodilation. It is a
cornerstone of COPD maintenance therapy .
9. A patient picks up a prescription for a combination inhaler containing
fluticasone and salmeterol. What critical patient education must be provided?
• A) "Use this inhaler for sudden shortness of breath."
• B) "Rinse your mouth after use to prevent thrush."
• C) "This medication will work immediately like a rescue inhaler."
• D) "Do not use this if you have heart disease."
Correct Answer: B
Rationale: Inhaled corticosteroids (fluticasone) can cause oral candidiasis (thrush).
Patients must rinse their mouth with water (and spit out) after each use. Salmeterol
(LABA) should not be used for acute symptoms; it increases mortality if used as
monotherapy for acute attacks .
(Latest 2026) with questions and
answers with rationales/graded
A+/2026 update/100% correct
Cardiovascular & Hematologic Pharmacology
1. A 62-year-old African American male with hypertension and stage 3 chronic
kidney disease (CKD) presents for follow-up. His BP is 148/90 mmHg. Which
antihypertensive regimen is MOST appropriate as first-line therapy given his
comorbid conditions?
• A) Hydrochlorothiazide 25 mg daily
• B) Lisinopril 10 mg daily
• C) Metoprolol 50 mg daily
• D) Amlodipine 5 mg daily
Correct Answer: B
Rationale: ACE inhibitors (like lisinopril) are first-line for hypertension,
especially in patients with CKD due to their renoprotective effects (reducing
intraglomerular pressure). While thiazides are first-line for general HTN, they are
less effective in advanced CKD (eGFR <30). Beta-blockers are not first-line
without another compelling indication. CCBs are options but do not provide the
same renal protection as RAAS blockade .
2. A patient with non-valvular atrial fibrillation (CHADS-VASc score of 4) is
currently taking warfarin. He asks about switching to apixaban (Eliquis) to
avoid dietary restrictions. What is a primary advantage of apixaban over
warfarin?
• A) No requirement for routine INR monitoring
, • B) Reversal agent is widely available over-the-counter
• C) Lower cost than warfarin
• D) Safe to use in mechanical heart valves
Correct Answer: A
Rationale: Direct Oral Anticoagulants (DOACs) like apixaban have predictable
pharmacokinetics and do not require routine INR monitoring. DOACs are
contraindicated in mechanical heart valves. Vitamin K is the reversal agent for
warfarin; Andexanet alfa is expensive and used for specific DOACs. Warfarin is
generally much cheaper .
3. Which medication is associated with the adverse effect of a persistent, dry,
hacking cough that resolves upon discontinuation?
• A) Losartan
• B) Lisinopril
• C) Metoprolol
• D) Amlodipine
Correct Answer: B
Rationale: Angiotensin-converting enzyme (ACE) inhibitors (lisinopril, enalapril)
commonly cause a dry cough due to the accumulation of bradykinin in the lungs.
ARBs (losartan) have a significantly lower incidence of cough. Beta-blockers
cause fatigue/bradycardia; CCBs cause edema .
4. A patient is prescribed furosemide (Lasix) 40 mg BID for heart failure.
Which laboratory finding requires the most immediate intervention?
• A) Sodium 135 mEq/L
• B) Creatinine 1.1 mg/dL
• C) Potassium 2.9 mEq/L
• D) BUN 18 mg/dL
Correct Answer: C
Rationale: Loop diuretics cause significant renal excretion of potassium, leading
to hypokalemia. A potassium of 2.9 mEq/L increases the risk of fatal cardiac
,arrhythmias (especially if the patient is also on Digoxin) and requires immediate
repletion .
5. A patient on Digoxin presents with nausea, vomiting, blurred vision (yellow
halos), and a heart rate of 45 bpm. Which electrolyte imbalance most likely
precipitated this toxicity?
• A) Hypernatremia
• B) Hypokalemia
• C) Hypercalcemia
• D) Hypomagnesemia
Correct Answer: B
Rationale: Hypokalemia increases the binding of digoxin to the sodium-potassium
ATPase pump, leading to toxicity even at normal serum levels. Low potassium
enhances the toxic effects of digoxin on cardiac conduction and automaticity.
6. Which of the following is the antidote of choice for a patient with life-
threatening bleeding due to apixaban (Eliquis)?
• A) Protamine Sulfate
• B) Vitamin K
• C) Andexanet alfa
• D) Naloxone
Correct Answer: C
Rationale: Andexanet alfa (Andexxa) is a recombinant modified human factor Xa
decoy protein that binds and sequesters apixaban and rivaroxaban. Protamine
reverses heparin. Vitamin K reverses warfarin.
Respiratory & Immunology
7. According to the 2026 GINA guidelines, what is the preferred reliever
medication for an adult with mild intermittent asthma?
• A) Low-dose ICS-formoterol (as needed)
• B) Albuterol (SABA) as needed
, • C) Oral montelukast daily
• D) High-dose ICS daily
Correct Answer: B
Rationale: While guidelines are shifting toward ICS-formoterol for mild persistent
asthma, for intermittent asthma (symptoms <2 days/week), as-needed short-acting
beta-agonist (SABA) such as albuterol remains the standard rescue therapy.
However, the search results emphasize that for persistent asthma, ICS-formoterol is
preferred to reduce severe exacerbations .
8. A patient with COPD and a history of frequent exacerbations is prescribed
tiotropium (Spiriva). What is the mechanism of action of this medication?
• A) Beta-2 agonist causing bronchodilation
• B) Long-acting muscarinic antagonist (LAMA)
• C) Phosphodiesterase-4 inhibitor
• D) Corticosteroid reducing airway inflammation
Correct Answer: B
Rationale: Tiotropium is a long-acting muscarinic antagonist (LAMA) that blocks
acetylcholine in bronchial smooth muscle, causing bronchodilation. It is a
cornerstone of COPD maintenance therapy .
9. A patient picks up a prescription for a combination inhaler containing
fluticasone and salmeterol. What critical patient education must be provided?
• A) "Use this inhaler for sudden shortness of breath."
• B) "Rinse your mouth after use to prevent thrush."
• C) "This medication will work immediately like a rescue inhaler."
• D) "Do not use this if you have heart disease."
Correct Answer: B
Rationale: Inhaled corticosteroids (fluticasone) can cause oral candidiasis (thrush).
Patients must rinse their mouth with water (and spit out) after each use. Salmeterol
(LABA) should not be used for acute symptoms; it increases mortality if used as
monotherapy for acute attacks .
