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 20 mg daily, Metoprolol succinate 100 mg daily, and
Furosemide 40 mg 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 40 mg daily
B. Add Dapagliflozin 10 mg daily
C. Add Spironolactone 25 mg daily
D. Switch Metoprolol to Carvedilol 25 mg 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 ACE inhibitor-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 200 mg and venlafaxine 225 mg) is started on phenelzine 15
mg 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
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, and 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 and hypertension) are
classic for MAO inhibitor-induced hypertensive crisis and require
immediate blood pressure management and dietary counseling.
Q3: A 72-year-old female with atrial fibrillation (CHA₂DS₂-VASc 5) on
rivaroxaban 20 mg 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 ≥2) after GI bleeding is
controlled. Delaying beyond 7 days (option B) significantly increases
stroke risk, which outweighs rebleeding risk in this high CHA₂DS₂-
VASc patient. Immediate resumption (option A) risks rebleeding, while
aspirin monotherapy (option D) provides inadequate stroke protection in
atrial fibrillation.
Q4: A 58-year-old male with HIV (CD4 450, undetectable viral load) 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.
Q5: A 35-year-old female with partial-onset seizures on carbamazepine
600 mg 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 only slightly elevated. This
pharmacokinetic interaction requires immediate carbamazepine dose
reduction (typically 30–50%) when initiating valproate. Valproate also
displaces carbamazepine from plasma proteins, increasing the free
fraction.
Q6: A patient on chronic prednisone 20 mg 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 16 mg daily
B. Add lisinopril and metformin; continue current prednisone dose
C. Rapid taper to 5 mg 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-
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 20 mg daily, Metoprolol succinate 100 mg daily, and
Furosemide 40 mg 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 40 mg daily
B. Add Dapagliflozin 10 mg daily
C. Add Spironolactone 25 mg daily
D. Switch Metoprolol to Carvedilol 25 mg 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 ACE inhibitor-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 200 mg and venlafaxine 225 mg) is started on phenelzine 15
mg 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
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, and 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 and hypertension) are
classic for MAO inhibitor-induced hypertensive crisis and require
immediate blood pressure management and dietary counseling.
Q3: A 72-year-old female with atrial fibrillation (CHA₂DS₂-VASc 5) on
rivaroxaban 20 mg 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 ≥2) after GI bleeding is
controlled. Delaying beyond 7 days (option B) significantly increases
stroke risk, which outweighs rebleeding risk in this high CHA₂DS₂-
VASc patient. Immediate resumption (option A) risks rebleeding, while
aspirin monotherapy (option D) provides inadequate stroke protection in
atrial fibrillation.
Q4: A 58-year-old male with HIV (CD4 450, undetectable viral load) 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.
Q5: A 35-year-old female with partial-onset seizures on carbamazepine
600 mg 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 only slightly elevated. This
pharmacokinetic interaction requires immediate carbamazepine dose
reduction (typically 30–50%) when initiating valproate. Valproate also
displaces carbamazepine from plasma proteins, increasing the free
fraction.
Q6: A patient on chronic prednisone 20 mg 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 16 mg daily
B. Add lisinopril and metformin; continue current prednisone dose
C. Rapid taper to 5 mg 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-
