NR566/ NR 566 Week 1 Exam (Latest 2026/2027 Update) | Complete Exam Questions with Verified Answers and Detailed Rationales | Advanced Pharmacology – Antifungals, Antivirals, Antimicrobial Stewardship | A+ Graded

NR566 / NR 566 Advanced Pharmacology for Care of the Family Week 1 Exam:
(Latest Update) Comprehensive Q&A | Grade A | 100% Correct (Verified
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Subject: Advanced Pharmacology (NR566) – Week 1 Exam: Antibiotic Classifications, Mechanisms,
Indications, Special Populations, Adverse Effects
Source: Week 1 Exam Blueprint – Beta-Lactams, Fluoroquinolones, Tetracyclines, Macrolides,
Aminoglycosides, Sulfonamides, CDIFF, CAP Treatment
Format: Q&A Guide with Rationale – 100% Verified Answers
Verified: Latest Update | Grade A Guaranteed


1: What are the major antibiotic drug classes?
Correct Answer: Beta-lactams: penicillins; Beta-lactams: cephalosporins; fluoroquinolones;
tetracyclines and macrolides; sulfonamides, trimethoprim, & nitrofurantoin

1. Additional classes: aminoglycosides, carbapenems, glycopeptides (vancomycin).
2. Understand mechanism of action within each class.
3. Choice based on organism, site, patient factors.

2: What is the primary goal of antibiotic therapy?
Correct Answer: Kill bacteria without harming host tissue

1. Selective toxicity: target bacterial structures not present in human cells.
2. Minimize adverse effects.
3. Prevent resistance.

3: What are bactericidal antibiotics?
Correct Answer: Directly kill bacteria

1. Examples: penicillins, cephalosporins, vancomycin, aminoglycosides, fluoroquinolones.
2. Preferred in immunocompromised patients and overwhelming infection.
3. Cause irreversible cell damage.

4: What are bacteriostatic antibiotics?
Correct Answer: Antibiotics that do not actually kill bacteria but rather inhibit bacterial proliferation
while the host's immune system does the killing.

1. Examples: tetracyclines, macrolides, clindamycin, sulfonamides.
2. Need intact immune system for efficacy.
3. Reversible inhibition.

, 5: Which antibiotics are preferred for immunocompromised patients?
Correct Answer: Bactericidal

1. Immunocompromised hosts cannot mount adequate immune response to clear bacteriostatic
drugs.
2. Bactericidal agents directly kill pathogens.
<3>Examples: beta-lactams, vancomycin, aminoglycosides.

6: Which antibiotics are preferred for patients with an overwhelming infection?
Correct Answer: Bactericidal

1. Overwhelming infection (sepsis, meningitis, endocarditis) requires rapid killing.
2. Bacteriostatic agents may be inadequate.
3. Synergistic combinations may be used.

7: What are broad-spectrum antibiotics?
Correct Answer: Affect a broad range of gram-positive or gram-negative bacteria

1. Examples: fluoroquinolones, carbapenems, third-generation cephalosporins.
2. Used for empiric therapy.
3. Risk of C. diff and resistance.

8: What are narrow-spectrum antibiotics?
Correct Answer: Effective against specific bacteria

1. Examples: penicillin G (strep), vancomycin (MRSA).
2. Preferred when pathogen known.
3. Less disruption of normal flora.

9: Which is used for empiric therapy: narrow or broad spectrum?
Correct Answer: Broad spectrum

1. Empiric therapy initiated before culture results.
2. Broad coverage increases chance of covering possible pathogens.
3. De-escalate once susceptibilities known.

10: Risks of broad-spectrum antibiotics.
Correct Answer: Disruption of normal flora; increases risk of development of antibiotic resistance

1. C. diff infection is major risk.
2. Colonization with resistant organisms.
3. Superinfection (Candida).