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

Personnel are the primary source of microbial contamination because skin, hair, and respiratory secretions shed microorganisms into the compounding environment.

Question 2

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

Accepted Answer

99.97%

Answer

HEPA filters are rated to capture at least 99.97% of airborne particles that are 0.3 microns or larger in size.

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

Sterile 70% IPA is the standard disinfectant for critical surfaces in an ISO 5 environment because it evaporates cleanly and does not leave residue.

Question 4

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

Accepted Answer

Microbial contamination was present on a surface

Answer

Contact plates detect surface bioburden; any growth indicates microbial contamination that must be investigated and remediated.

Question 5

Which class of microorganisms is most resistant to chemical disinfection?

Accepted Answer

Bacterial endospores

Answer

Bacterial endospores (e.g., Clostridium and Bacillus species) form highly resistant dormant structures that require sporicidal agents or sterilization to destroy.

CSPT - Compounded Sterile Preparation Technician Practice Test

CSPT - Compounded Sterile Preparation Technician Practice Test

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