CRCST Instrument Processing 5

Question 1

During inspection of instruments before packaging, which quality check should be performed on scissors?

Accepted Answer

Test cutting ability by cutting through a test material appropriate for that instrument

Answer

Scissors should be tested by cutting appropriate test material (e.g., gauze or test paper) to verify proper alignment and cutting function before sterilization.

Question 2

Ethylene oxide (EO) sterilization requires a mandatory aeration period after the cycle primarily to:

Accepted Answer

Dissipate toxic EO residues from items before they are safe for patient use

Answer

EO is toxic to humans, and aeration is required to allow EO residues to off-gas from materials to safe levels before the items are used on patients.

Question 3

Which of the following is a key principle when loading a steam sterilizer to ensure effective sterilization?

Accepted Answer

Position items to allow steam circulation and condensate drainage

Answer

Proper loading requires adequate space for steam circulation and positioning items so condensate drains away, preventing wet packs and ensuring steam contact.

Question 4

A flash sterilization (Immediate Use Steam Sterilization/IUSS) cycle is most appropriately used when:

Accepted Answer

An instrument is dropped in the OR and is urgently needed with no sterile replacement available

Answer

IUSS is intended for urgent, unplanned situations where a dropped or contaminated instrument is urgently needed and no sterile replacement is available.

Question 5

What is the primary hazard of inadequate rinsing of enzymatic detergent from instruments before sterilization?

Accepted Answer

Residual detergent can cause patient tissue irritation or toxic reactions

Answer

Residual enzymatic detergent on instruments can cause toxic or adverse reactions in patients when the instruments contact tissue during procedures.

(CRCST) Certified Registered Central Service Technician Exam Practice Test

(CRCST) Certified Registered Central Service Technician Exam Practice Test

CRCST Instrument Processing 5