NR 566 Midterm & Final Exam: Questions & Answers (Update) Advanced Pharmacology - Care of the Family | Chamberlain University

NR 566
Midterm & Final Exam: Questions & Answers
(Update) Advanced Pharmacology - Care of the
Family | Chamberlain University

This Document Contains:

✓ NR 566
✓ Midterm & Final Exam
✓ Advanced Pharmacology - Care of the Family
✓ 2026-2027 Update
✓ Full Exam with Verified Answers
✓ Western Governors University

,NR 566 Advanced Pharmacology - Care of the Family

Midterm & Final Exam

Questions & Answers with Rationales



PART 1: MIDTERM EXAM

Question 1: Which antifungal agent requires a patient to avoid simvastatin due to the risk of
rhabdomyolysis from CYP3A4 inhibition?
A. Fluconazole
B. Itraconazole
C. Terbinafine
D. Griseofulvin

Correct Answer: B. Itraconazole

Rationale: Itraconazole potently inhibits the CYP3A4 enzyme, significantly increasing plasma
concentrations of HMG-CoA reductase inhibitors like simvastatin, leading to myopathy and
rhabdomyolysis. Prescribers must either switch to pravastatin (which is not metabolized by
CYP3A4) or select an alternative antifungal agent .



Question 2: What is the standard loading dose for caspofungin when treating invasive
aspergillosis?
A. 50 mg IV
B. 70 mg IV
C. 100 mg IV
D. 150 mg IV

Correct Answer: B. 70 mg IV

Rationale: Caspofungin requires a 70 mg intravenous loading dose on day one, followed by 50
mg daily thereafter, to achieve therapeutic plasma levels quickly. This echinocandin is reserved
for refractory invasive aspergillosis or candidiasis when azoles or amphotericin B are
contraindicated .



Question 3: Why might an elderly patient with achlorhydria have reduced absorption of
standard itraconazole formulations?
A. Itraconazole requires an acidic environment for dissolution

,B. Achlorhydria increases renal clearance
C. Gastric acid destroys itraconazole
D. Achlorhydria induces CYP3A4 enzymes

Correct Answer: A. Itraconazole requires an acidic environment for dissolution

Rationale: Standard itraconazole capsules require gastric acid for proper dissolution and
absorption. Elderly patients with achlorhydria or those taking proton pump inhibitors achieve
subtherapeutic drug levels unless switched to the SUBA-itraconazole formulation designed for
absorption at higher pH .



Question 4: Which preventive measure is essential when administering amphotericin B to
minimize nephrotoxicity?
A. Administration with mannitol diuresis
B. Pre- and post-hydration with 500 mL normal saline
C. Concurrent administration of NSAIDs
D. Restricting oral fluids for 4 hours prior

Correct Answer: B. Pre- and post-hydration with 500 mL normal saline

Rationale: Saline loading with 500 mL IV normal saline before and after amphotericin B infusion
dilutes drug concentration in renal tubules and reduces vasoconstrictive effects. Concurrent
nephrotoxic drugs (NSAIDs, aminoglycosides) must be avoided, and renal function monitored
every 3-7 days .



Question 5: Which antifungal agent is the drug of choice for invasive aspergillosis due to its
superior activity against Aspergillus species and good CNS penetration?
A. Fluconazole
B. Itraconazole
C. Voriconazole
D. Caspofungin

Correct Answer: C. Voriconazole

Rationale: Voriconazole is the first-line agent for invasive aspergillosis, offering fungistatic
activity against Aspergillus and excellent penetration into the central nervous system. It inhibits
fungal CYP450-dependent 14-α-sterol demethylase, disrupting cell membrane ergosterol
synthesis .

, Question 6: Why are topical antifungals generally ineffective for treating tinea capitis?
A. The scalp has poor blood supply
B. Dermatophytes reside deep within hair follicles and shafts
C. Topical agents cause severe scalp irritation
D. The stratum corneum is too thick on the scalp

Correct Answer: B. Dermatophytes reside deep within hair follicles and shafts

Rationale: Tinea capitis requires systemic therapy (oral griseofulvin or terbinafine) because the
dermatophytes invade hair follicles and internal structures of hair shafts that topical agents
cannot penetrate. Topical therapy is reserved for tinea corporis or pedis where fungi remain in
superficial keratin layers .



Question 7: What is the mechanism of action of oseltamivir (Tamiflu)?
A. Inhibition of viral DNA polymerase
B. Inhibition of neuraminidase enzyme
C. Blockade of viral entry via CCR5 receptors
D. Inhibition of viral protease

Correct Answer: B. Inhibition of neuraminidase enzyme

Rationale: Oseltamivir is a neuraminidase inhibitor that prevents the release of newly formed
influenza viral particles from host cell membranes, limiting viral spread within the respiratory
tract. Efficacy requires initiation within 48 hours of symptom onset for treatment or 7-10 days
for post-exposure prophylaxis .



Question 8: Which route of acyclovir administration is indicated for herpes simplex
encephalitis?
A. Topical cream
B. Oral capsules
C. Intravenous infusion
D. Intramuscular injection

Correct Answer: C. Intravenous infusion

Rationale: Herpes simplex encephalitis requires high-dose intravenous acyclovir to achieve
therapeutic concentrations in the central nervous system due to poor oral bioavailability (15-
30%). Oral formulations are reserved for uncomplicated mucocutaneous infections or shingles
in immunocompetent patients .