NURS 251 Pharmacology – Module 6
NURS 251
Antimicrobial Pharmacology
100 Questions with Complete Solutions and Rationales
Updated 2026 Edition
Key Concepts Covered:
1. Antibiotic Fundamentals & Mechanisms
2. Penicillins & Cephalosporins (Beta-lactams)
3. Macrolides, Tetracyclines & Aminoglycosides
4. Fluoroquinolones & Sulfonamides
5. Antiviral & Antifungal Therapies
6. Antitubercular (TB) Management
7. Nursing Safety & Patient Education
Prepared for Nursing Students | Antimicrobial Exam Prep
Antimicrobial Question Bank | Updated 2026
,NURS 251 Pharmacology – Module 6 Exam Prep
Contents
1 Antibiotic Fundamentals 3
2 Penicillins & Cephalosporins 8
3 Macrolides, Tetracyclines, & Aminoglycosides 12
4 Fluoroquinolones, Sulfonamides, & Others 17
5 Antivirals & Antifungals 22
6 Antitubercular & Antifungal Agents 27
7 Nursing Considerations & Patient Education 32
Antimicrobial Question Bank | Updated 2026
,NURS 251 Pharmacology – Module 6 Exam Prep
Section 1: Antibiotic Fundamentals (Questions 1-15)
Question 1
Which of the following best defines the term "antibiotic"?
A) A medication that kills viruses
B) A substance produced by a microorganism that kills or inhibits the growth of other
microorganisms
C) A synthetic medication used to treat fungal infections
D) A medication that boosts the immune system
Answer
B
Rationale
An antibiotic is a substance produced by a microorganism (such as bacteria or fungi) that kills or inhibits the
growth of other microorganisms. Some antibiotics are now synthesized, but the classic definition involves
microbial production.
Question 2
A patient is diagnosed with a bacterial infection. The nurse should recognize that antibiotics are
effective against which type of pathogen?
A) Viruses
B) Bacteria
C) Fungi
D) Parasites
Answer
B
Rationale
Antibiotics are specifically effective against bacteria. They are not effective against viruses, fungi, or
parasites. Antivirals, antifungals, and antiparasitics are used for those respective pathogens.
Antimicrobial Question Bank | Updated 2026
, NURS 251 Pharmacology – Module 6 Exam Prep
Question 3
A patient asks the nurse, "What is the difference between bactericidal and bacteriostatic
antibiotics?" The nurse's best response is:
A) "Bactericidal antibiotics kill bacteria, while bacteriostatic antibiotics slow bacterial growth."
B) "Bacteriostatic antibiotics kill bacteria, while bactericidal antibiotics slow bacterial growth."
C) "There is no difference between the two types."
D) "Bactericidal antibiotics are always more effective than bacteriostatic antibiotics."
Answer
A
Rationale
Bactericidal antibiotics directly kill bacteria, while bacteriostatic antibiotics inhibit bacterial growth and
replication, allowing the host's immune system to eliminate the bacteria.
Question 4
A patient is prescribed an antibiotic. Which nursing action is most important before administering
the first dose?
A) Assessing the patient's temperature
B) Obtaining a culture specimen before antibiotic administration
C) Administering the antibiotic with food
D) Checking the patient's complete blood count
Answer
B
Rationale
Cultures should be obtained before the first dose of an antibiotic to identify the causative organism and
determine antibiotic sensitivity. Delaying antibiotic administration is not recommended in critically ill patients,
but cultures should be obtained as soon as possible.
Antimicrobial Question Bank | Updated 2026