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WGU D116 Advanced Pharmacology OA &
ACTUAL EXAM 2026/2027 | Verified
Questions and Correct Detailed Answers |
Pass Guaranteed - A+ Graded
OBJECTIVE ASSESSMENT: 70 QUESTIONS
COMPLEX CASE MANAGEMENT (Questions 1-30)
Q1: A 68-year-old male with HFrEF (EF 30%), type 2 diabetes, and CKD Stage 3b (eGFR 38)
presents with persistent dyspnea despite being on Lisinopril 20mg daily, Metoprolol succinate
100mg daily, and Furosemide 40mg daily. His BP is 142/88 mmHg, HR 72 bpm. According to
2026 GDMT guidelines, which medication modification offers the greatest mortality benefit?
A. Increase Lisinopril to 40mg daily
B. Add Dapagliflozin 10mg daily
C. Add Spironolactone 25mg daily
D. Switch Metoprolol to Carvedilol 25mg BID
Correct Answer: B
Rationale: The 2026 ACC/AHA/HFSA Heart Failure guidelines emphasize SGLT2 inhibitors
(dapagliflozin or empagliflozin) as foundational GDMT for HFrEF, regardless of diabetes status,
showing significant reductions in cardiovascular death and hospitalization (DAPA-HF and
DELIVER trials). While spironolactone is indicated for persistent symptoms in NYHA Class II-
IV (option C), SGLT2 inhibitors have demonstrated broader mortality benefits across the HF
spectrum. Option A risks ACEi-related acute kidney injury with borderline eGFR, and option B
provides superior outcomes to beta-blocker switching at this stage.
Q2: A 45-year-old female with treatment-resistant depression (failed sertraline 200mg and
venlafaxine 225mg) is started on phenelzine 15mg TID. Two weeks later, she presents to urgent
care with occipital headache, neck stiffness, and BP 192/118 mmHg after eating at a restaurant.
Which dietary component is most likely responsible?
A. Aged parmesan cheese
B. Grilled chicken breast
C. Fresh mozzarella
D. Steamed broccoli
,2
Correct Answer: A
Rationale: Phenelzine is an irreversible MAO inhibitor that requires strict tyramine avoidance to
prevent hypertensive crisis. Tyramine-rich foods include aged cheeses (especially hard, aged
varieties like parmesan, cheddar, blue cheese), fermented/cured meats, and certain wines. Fresh
mozzarella is generally lower in tyramine than aged varieties, while chicken and broccoli do not
contain significant tyramine. The patient's symptoms (thunderclap headache, hypertension)
classic for MAO-induced hypertensive crisis require immediate BP management and dietary
counseling.
Q3: A 72-year-old female with atrial fibrillation (CHADS₂-VASc 5) on rivaroxaban 20mg daily
presents with acute GI bleeding (Hgb 8.2 g/dL). Her creatinine is 1.4 mg/dL (eGFR 42). After
stabilization, when should anticoagulation be restarted?
A. Immediately after endoscopic hemostasis
B. 7 days after bleeding control due to high stroke risk
C. 3-4 days after bleeding control with reassessment of risk/benefit
D. Switch to aspirin indefinitely due to bleeding history
Correct Answer: C
Rationale: The 2026 CHEST guidelines and recent evidence support early resumption of
DOACs (3-4 days) in patients with high thromboembolic risk (CHA₂DS₂-VASc ≥4) after GI
bleeding is controlled. Delaying beyond 7 days (option B) significantly increases stroke risk
which outweighs rebleeding risk in this high CHADS₂-VASc patient. Immediate resumption
(option A) risks rebleeding, while aspirin monotherapy (option D) provides inadequate stroke
protection in AF.
Q4: A 58-year-old male with HIV (CD4 450, undetectable VL) on bictegravir/tenofovir
alafenamide/emtricitabine (BIC/TAF/FTC) develops community-acquired pneumonia requiring
clarithromycin. Which modification is necessary?
A. Continue current regimen; no interaction
B. Switch HIV regimen to dolutegravir-based therapy
C. Switch antibiotic to azithromycin
D. Hold bictegravir during antibiotic course
Correct Answer: C
Rationale: Clarithromycin is a potent CYP3A4 and P-gp inhibitor that significantly increases
bictegravir levels, risking toxicity. The 2026 DHHS guidelines recommend switching the
macrolide to azithromycin (which has fewer CYP interactions) rather than modifying the ART
regimen, as virologic suppression must be maintained. Holding bictegravir (option D) risks HIV
resistance and treatment failure.
, 3
Q5: A 35-year-old female with partial-onset seizures on carbamazepine 600mg BID presents
with dizziness, ataxia, and nausea. Level is 14 mcg/mL (therapeutic 4-12). She recently started a
new medication for mood stabilization. Which drug likely caused this toxicity?
A. Lithium carbonate
B. Valproic acid
C. Lamotrigine
D. Aripiprazole
Correct Answer: B
Rationale: Valproic acid inhibits epoxide hydrolase, the enzyme responsible for metabolizing
carbamazepine-10,11-epoxide (the active metabolite), leading to increased carbamazepine
toxicity even when parent drug levels appear therapeutic or slightly elevated. This
pharmacokinetic interaction requires immediate carbamazepine dose reduction (typically 30-
50%) when initiating valproate. Valproate also displaces carbamazepine from plasma proteins,
increasing free fraction.
Q6: A patient on chronic prednisone 20mg daily for polymyalgia rheumatica develops new-onset
hypertension (BP 168/102) and glucose 248 mg/dL. Which strategy best manages these
corticosteroid-induced adverse effects?
A. Switch to methylprednisolone 16mg daily
B. Add lisinopril and metformin; continue current prednisone dose
C. Rapid taper to 5mg daily over 2 weeks
D. Initiate prophylactic calcium and vitamin D only
Correct Answer: B
Rationale: Corticosteroid-induced hypertension and hyperglycemia require active management
rather than regimen changes that might compromise disease control. ACE inhibitors are preferred
for steroid-induced hypertension due to their renal protective effects, while metformin remains
first-line for steroid-induced diabetes unless contraindicated. Rapid tapering (option C) risks
disease relapse. Equipotent steroid switching (option A) offers no advantage, and
calcium/vitamin D (option D) addresses bone protection but not the acute metabolic issues.
Q7: A patient with chronic pain on morphine 30mg ER BID and morphine 15mg IR q4h PRN
reports sedation and respiratory rate of 10. Besides naloxone administration, which intervention
is most appropriate to prevent renarcotization?
A. Transition to methadone immediately
B. Continuous naloxone infusion or serial boluses
C. Administer flumazenil
D. Initiate buprenorphine for maintenance
WGU D116 Advanced Pharmacology OA &
ACTUAL EXAM 2026/2027 | Verified
Questions and Correct Detailed Answers |
Pass Guaranteed - A+ Graded
OBJECTIVE ASSESSMENT: 70 QUESTIONS
COMPLEX CASE MANAGEMENT (Questions 1-30)
Q1: A 68-year-old male with HFrEF (EF 30%), type 2 diabetes, and CKD Stage 3b (eGFR 38)
presents with persistent dyspnea despite being on Lisinopril 20mg daily, Metoprolol succinate
100mg daily, and Furosemide 40mg daily. His BP is 142/88 mmHg, HR 72 bpm. According to
2026 GDMT guidelines, which medication modification offers the greatest mortality benefit?
A. Increase Lisinopril to 40mg daily
B. Add Dapagliflozin 10mg daily
C. Add Spironolactone 25mg daily
D. Switch Metoprolol to Carvedilol 25mg BID
Correct Answer: B
Rationale: The 2026 ACC/AHA/HFSA Heart Failure guidelines emphasize SGLT2 inhibitors
(dapagliflozin or empagliflozin) as foundational GDMT for HFrEF, regardless of diabetes status,
showing significant reductions in cardiovascular death and hospitalization (DAPA-HF and
DELIVER trials). While spironolactone is indicated for persistent symptoms in NYHA Class II-
IV (option C), SGLT2 inhibitors have demonstrated broader mortality benefits across the HF
spectrum. Option A risks ACEi-related acute kidney injury with borderline eGFR, and option B
provides superior outcomes to beta-blocker switching at this stage.
Q2: A 45-year-old female with treatment-resistant depression (failed sertraline 200mg and
venlafaxine 225mg) is started on phenelzine 15mg TID. Two weeks later, she presents to urgent
care with occipital headache, neck stiffness, and BP 192/118 mmHg after eating at a restaurant.
Which dietary component is most likely responsible?
A. Aged parmesan cheese
B. Grilled chicken breast
C. Fresh mozzarella
D. Steamed broccoli
,2
Correct Answer: A
Rationale: Phenelzine is an irreversible MAO inhibitor that requires strict tyramine avoidance to
prevent hypertensive crisis. Tyramine-rich foods include aged cheeses (especially hard, aged
varieties like parmesan, cheddar, blue cheese), fermented/cured meats, and certain wines. Fresh
mozzarella is generally lower in tyramine than aged varieties, while chicken and broccoli do not
contain significant tyramine. The patient's symptoms (thunderclap headache, hypertension)
classic for MAO-induced hypertensive crisis require immediate BP management and dietary
counseling.
Q3: A 72-year-old female with atrial fibrillation (CHADS₂-VASc 5) on rivaroxaban 20mg daily
presents with acute GI bleeding (Hgb 8.2 g/dL). Her creatinine is 1.4 mg/dL (eGFR 42). After
stabilization, when should anticoagulation be restarted?
A. Immediately after endoscopic hemostasis
B. 7 days after bleeding control due to high stroke risk
C. 3-4 days after bleeding control with reassessment of risk/benefit
D. Switch to aspirin indefinitely due to bleeding history
Correct Answer: C
Rationale: The 2026 CHEST guidelines and recent evidence support early resumption of
DOACs (3-4 days) in patients with high thromboembolic risk (CHA₂DS₂-VASc ≥4) after GI
bleeding is controlled. Delaying beyond 7 days (option B) significantly increases stroke risk
which outweighs rebleeding risk in this high CHADS₂-VASc patient. Immediate resumption
(option A) risks rebleeding, while aspirin monotherapy (option D) provides inadequate stroke
protection in AF.
Q4: A 58-year-old male with HIV (CD4 450, undetectable VL) on bictegravir/tenofovir
alafenamide/emtricitabine (BIC/TAF/FTC) develops community-acquired pneumonia requiring
clarithromycin. Which modification is necessary?
A. Continue current regimen; no interaction
B. Switch HIV regimen to dolutegravir-based therapy
C. Switch antibiotic to azithromycin
D. Hold bictegravir during antibiotic course
Correct Answer: C
Rationale: Clarithromycin is a potent CYP3A4 and P-gp inhibitor that significantly increases
bictegravir levels, risking toxicity. The 2026 DHHS guidelines recommend switching the
macrolide to azithromycin (which has fewer CYP interactions) rather than modifying the ART
regimen, as virologic suppression must be maintained. Holding bictegravir (option D) risks HIV
resistance and treatment failure.
, 3
Q5: A 35-year-old female with partial-onset seizures on carbamazepine 600mg BID presents
with dizziness, ataxia, and nausea. Level is 14 mcg/mL (therapeutic 4-12). She recently started a
new medication for mood stabilization. Which drug likely caused this toxicity?
A. Lithium carbonate
B. Valproic acid
C. Lamotrigine
D. Aripiprazole
Correct Answer: B
Rationale: Valproic acid inhibits epoxide hydrolase, the enzyme responsible for metabolizing
carbamazepine-10,11-epoxide (the active metabolite), leading to increased carbamazepine
toxicity even when parent drug levels appear therapeutic or slightly elevated. This
pharmacokinetic interaction requires immediate carbamazepine dose reduction (typically 30-
50%) when initiating valproate. Valproate also displaces carbamazepine from plasma proteins,
increasing free fraction.
Q6: A patient on chronic prednisone 20mg daily for polymyalgia rheumatica develops new-onset
hypertension (BP 168/102) and glucose 248 mg/dL. Which strategy best manages these
corticosteroid-induced adverse effects?
A. Switch to methylprednisolone 16mg daily
B. Add lisinopril and metformin; continue current prednisone dose
C. Rapid taper to 5mg daily over 2 weeks
D. Initiate prophylactic calcium and vitamin D only
Correct Answer: B
Rationale: Corticosteroid-induced hypertension and hyperglycemia require active management
rather than regimen changes that might compromise disease control. ACE inhibitors are preferred
for steroid-induced hypertension due to their renal protective effects, while metformin remains
first-line for steroid-induced diabetes unless contraindicated. Rapid tapering (option C) risks
disease relapse. Equipotent steroid switching (option A) offers no advantage, and
calcium/vitamin D (option D) addresses bone protection but not the acute metabolic issues.
Q7: A patient with chronic pain on morphine 30mg ER BID and morphine 15mg IR q4h PRN
reports sedation and respiratory rate of 10. Besides naloxone administration, which intervention
is most appropriate to prevent renarcotization?
A. Transition to methadone immediately
B. Continuous naloxone infusion or serial boluses
C. Administer flumazenil
D. Initiate buprenorphine for maintenance
