Practice Questions

A patient is infected with a protozoan parasite, such as Giardia. Protozoa are:

A. Unicellular fungi.
B. Multicellular worms.
C. Single-celled eukaryotic microorganisms. ✓
D. Non-living infectious agents.
nmdcat.online BS Nursing
Jun 6, 2026

A patient is prescribed an antibiotic that targets the bacterial cell wall. This mechanism of action is effective because human cells:

A. Also have cell walls that are affected.
B. Have a different type of cell wall.
C. Lack a cell wall. ✓
D. Have a cell membrane that is resistant to the antibiotic.
nmdcat.online BS Nursing
Jun 6, 2026

A microorganism that lacks a true nucleus and membrane-bound organelles is classified as a:

A. Eukaryote
B. Prokaryote ✓
C. Virus
D. Fungus
nmdcat.online BS Nursing
Jun 6, 2026

A patient with pneumonia is coughing and sneezing. This mode of transmission for microorganisms is considered:

A. Direct contact
B. Indirect contact
C. Droplet transmission ✓
D. Airborne transmission
nmdcat.online BS Nursing
Jun 6, 2026

A patient has a localized skin infection with pus formation. This indicates the presence of bacteria that are typically:

A. Gram-negative rods
B. Acid-fast bacilli
C. Gram-positive cocci ✓
D. Spirochetes
nmdcat.online BS Nursing
Jun 6, 2026

A nurse is preparing to clean a medical instrument. Disinfection is a process that:

A. Eliminates all forms of microbial life.
B. Reduces the number of pathogenic microorganisms on inanimate objects. ✓
C. Renders an object free of all microorganisms.
D. Inactivates bacterial spores.
nmdcat.online BS Nursing
Jun 6, 2026

A patient is diagnosed with Clostridium difficile infection (CDI). To prevent its spread, the nurse knows that alcohol-based hand rubs are ineffective against C. difficile spores. Therefore, the most appropriate hand hygiene method is:

A. Using an alcohol-based hand rub for extended time.
B. Washing hands thoroughly with soap and water. ✓
C. Using antiseptic wipes only.
D. Wearing double gloves.
nmdcat.online BS Nursing
Jun 6, 2026
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