CRCST Sterilization Methods 5

Question 1

Which load configuration factor is most critical to ensuring adequate steam penetration in a sterilizer?

Accepted Answer

Items placed flat with sufficient spacing to allow steam circulation

Answer

Proper spacing between items is critical to allow steam to circulate and contact all surfaces, ensuring adequate penetration throughout the load.

Question 2

A CSST technician notices that the sterilizer chart recorder shows a temperature drop below the set point midway through a cycle. What is the correct action?

Accepted Answer

Quarantine the load and report the malfunction for investigation

Answer

A temperature drop below set point indicates a cycle failure; the load must be quarantined and the equipment malfunction investigated before reuse.

Question 3

What is the primary advantage of prevacuum (dynamic air removal) steam sterilization over gravity displacement?

Accepted Answer

Faster and more reliable air removal for complex and porous loads

Answer

Prevacuum cycles use mechanical pumping to rapidly and reliably remove air, enabling faster and more complete steam penetration into complex and porous items.

Question 4

Sterilization of liquid media in sealed glass ampules is CONTRAINDICATED with steam because:

Accepted Answer

Sealed containers prevent steam penetration and can explode from pressure buildup

Answer

Sealed glass containers prevent steam from penetrating to sterilize contents and can rupture or explode due to pressure differentials during the cycle.

Question 5

Which document must be completed and retained for every sterilization load per AAMI standards?

Accepted Answer

Load record including load number, cycle parameters, operator ID, and CI results

Answer

AAMI ST79 requires that a load record documenting load number, cycle parameters, operator identification, and chemical indicator results be maintained for traceability.

(CRCST) Certified Registered Central Service Technician Exam Practice Test

(CRCST) Certified Registered Central Service Technician Exam Practice Test

CRCST Sterilization Methods 5