CSPT CSPT - Compounded Sterile Preparation Technician Infection Control and Microbiology Questions and Answers

Question 1

What is the primary source of microbial contamination in compounded sterile preparations?

Accepted Answer

Personnel

Answer

Air particles

Answer

Water supply

Answer

Raw ingredients

Question 2

What percentage of particles ≥0.3 microns does a HEPA filter capture?

Accepted Answer

99.97%

Answer

95%

Answer

99.5%

Answer

90%

Question 3

Which disinfectant is most appropriate for routine surface disinfection in an ISO 5 critical zone?

Accepted Answer

Sterile 70% isopropyl alcohol (IPA)

Answer

Bleach solution

Answer

Quaternary ammonium compound

Answer

Hydrogen peroxide vapor

Question 4

Growth on a contact (settle) plate from environmental monitoring indicates:

Accepted Answer

Microbial contamination was present on a surface

Answer

The HVAC system has failed

Answer

A product sterility test failed

Answer

The anteroom needs repainting

Question 5

Which class of microorganisms is most resistant to chemical disinfection?

Accepted Answer

Bacterial endospores

Answer

Gram-negative bacteria

Answer

Fungi

Answer

Enveloped viruses

Question 6

For 70% isopropyl alcohol to achieve maximum disinfectant effectiveness, the treated surface should:

Accepted Answer

Remain visibly wet and be allowed to air dry completely

Answer

Be wiped dry immediately after application

Answer

Be rinsed with sterile water after 30 seconds

Answer

Be left wet for exactly 10 minutes