SPD Decontamination and Cleaning Processes 3

Question 1

What is point-of-use treatment and why is it critical for effective decontamination?

Accepted Answer

Applying enzymatic spray or gel to instruments immediately after use to prevent bioburden from drying during transport to the SPD

Answer

Point-of-use treatment keeps instruments moist and begins breaking down organic soil immediately, preventing the drying that makes subsequent decontamination much more difficult.

Question 2

What is the correct water temperature range for the initial pre-rinse of contaminated instruments?

Accepted Answer

Cold to lukewarm water, below 110°F (43°C)

Answer

Cool to lukewarm water is used for pre-rinsing because hot water coagulates blood proteins, causing them to bind more tightly to instrument surfaces.

Question 3

How should brushes used for manual cleaning of instruments be maintained?

Accepted Answer

Clean after each use, inspect for worn or bent bristles, disinfect or sterilize daily, and replace when bristles show deformation

Answer

Cleaning brushes can harbor and transfer bioburden between instruments if not properly maintained, making regular cleaning, inspection, and timely replacement essential.

Question 4

What role does the A0 value play in automated washer-disinfector cycles?

Accepted Answer

It quantifies the thermal disinfection effectiveness based on the time-temperature relationship during the disinfection phase

Answer

The A0 value is a standardized measure that quantifies the killing power of a thermal disinfection process based on the combination of temperature and exposure time.

Question 5

Why is it important to disassemble multi-component instruments before decontamination?

Accepted Answer

To ensure all surfaces, joints, and internal components are accessible to the cleaning process

Answer

Disassembly exposes all surfaces to cleaning agents and mechanical action, preventing trapped bioburden in joints, crevices, and between mated surfaces.

SPD - Sterile Processing Department Technician Certification Practice Test

SPD - Sterile Processing Department Technician Certification Practice Test

SPD Decontamination and Cleaning Processes 3