HSPA Sterilization and Disinfection 2

Question 1

What three parameters must be achieved simultaneously for effective steam sterilization?

Accepted Answer

Temperature, time, and steam quality (moisture)

Answer

Steam sterilization requires correct temperature, adequate exposure time, and proper steam quality simultaneously.

Question 2

What is the difference between high-level disinfection and sterilization?

Accepted Answer

HLD kills all organisms except high numbers of spores; sterilization destroys all forms including spores

Answer

HLD eliminates most organisms but not all spores; sterilization achieves complete microbial destruction.

Question 3

Why must air be removed from the sterilizer chamber?

Accepted Answer

Air acts as an insulating barrier preventing steam contact, creating cold spots

Answer

Trapped air creates insulating pockets where sterilization temperature is never achieved.

Question 4

What is the Bowie-Dick test's purpose?

Accepted Answer

To verify vacuum system adequately removes air from the chamber

Answer

The Bowie-Dick test evaluates the air removal capability of prevacuum sterilizers.

Question 5

What is immediate-use steam sterilization (IUSS) and when is it appropriate?

Accepted Answer

Emergency shortened cycle when no sterile alternative is available

Answer

IUSS is a shortened cycle for emergencies only when no sterile alternative instrument is available.

(HSPA) Healthcare Sterile Processing Association Certification Practice Test