WGU D311: MICROBIOLOGY WITH LAB: SECTION 3 UPDATED ACTUAL QUESTIONS AND CORRECT ANSWERS

WGU D311: MICROBIOLOGY WITH LAB: SECTION 3
UPDATED ACTUAL QUESTIONS AND CORRECT
ANSWERS

Question:
1. Which factor determines the level of bioburden (microbial level) allowed and, therefore, the microbial
controls required for items used in a general healthcare setting?
Answer:
The application or use of the item

Question:
2. Which laboratory biosafety level would be used for managing work with an organism of moderate risk
that is native to the local area?
Answer:
BSL-2

Question:
3. Which microbial control type can be used to completely eliminate all vegetative bacteria, endospores,
fungi, and viruses from an inanimate item?
Answer:
Sterilization

Question:
4. Which term describes the area specifically created and maintained for performing medical procedures
that carry risk from contamination?
Answer:
Sterile field

Question:
5. Which physical method of control works by removing microorganisms from a liquid?
Answer:
Filtration

Question:
6. Which physical method of control is used to denature proteins and alter membranes of microorganisms
to prevent spoilage of milk, apple juice, honey, and other ingestible items to reduce microorganism levels?
Answer:
Pasteurization

Question:
7. Which technique will ensure that Clostridium botulinum and botulinum toxin cannot cause foodborne
illness?
Answer:
Boiling foods for at least 10 minutes prior to eating.

, Question:
8. Which method would be used to sterilize an antibiotic solution?
Answer:
Membrane filtration

Question:
9. Which chemical treatment would be used before a disinfectant to reach a soiled surface?
Answer:
A surfactant

Question:
10. Which class of chemical disinfectant denatures proteins and disrupts membranes?
Answer:
Phenolics

Question:
11. Which chemical is commonly used for hand sanitizers and to degerm a site prior to injections due to its
effective destruction of vegetative bacteria by denaturing proteins and its quick drying properties?
Answer:
Alcohols

Question:
12. Which chemical is effective at killing bacterial endospores with sufficient time and concentration?
Answer:
Peroxygens

Question:
13. Which factor is of particular importance when administering an antibacterial drug to an
immunocompromised patient due to the patient's inability to clear infections?
Answer:
Bactericidal antimicrobial

Question:
14. Which antibacterial drug works by inhibiting nucleic acid synthesis?
Answer:
Fluoroquinolones

Question:
15. What is showcased when two antibiotics provide bacteriostatic inhibition when taken separately but
bactericidal inhibition when combined?
Answer:
Synergism

Question:
16. Which drug class inhibits cell wall biosynthesis?