CRCST Safety Standards 3

Question 1

What is the minimum air pressure relationship required in the decontamination area relative to adjacent clean areas?

Accepted Answer

Negative pressure

Answer

Decontamination areas must maintain negative air pressure so contaminated air flows inward and does not migrate to clean or sterile areas.

Question 2

Which type of glove provides the best cut resistance when processing sharps in the decontamination area?

Accepted Answer

Puncture-resistant utility gloves

Answer

Puncture-resistant utility gloves (such as stainless-steel mesh or heavy-duty nitrile) are required for handling sharps during decontamination to reduce cut injuries.

Question 3

According to ANSI/AAMI ST79, what is the recommended minimum number of air exchanges per hour in the decontamination area?

Accepted Answer

10 air changes per hour

Answer

ANSI/AAMI ST79 recommends a minimum of 10 air changes per hour in the decontamination area to dilute airborne contaminants.

Question 4

A CS technician notices a chemical spill of a high-level disinfectant. What is the FIRST action to take?

Accepted Answer

Alert coworkers and don appropriate PPE before approaching

Answer

The first priority is personal safety — alert others and don appropriate PPE (gloves, eye protection, gown) before approaching any chemical spill.

Question 5

Which label system uses pictograms and a 1–4 hazard rating on a diamond-shaped label for chemical hazards?

Accepted Answer

NFPA 704 diamond

Answer

The NFPA 704 system uses a four-colored diamond with numerical ratings (0–4) for health, flammability, instability, and special hazards.

(CRCST) Certified Registered Central Service Technician Exam Practice Test

(CRCST) Certified Registered Central Service Technician Exam Practice Test

CRCST Safety Standards 3