SPD High-Level Disinfection 2

Question 1

Which Spaulding classification level requires high-level disinfection as the minimum reprocessing standard?

Accepted Answer

Semi-critical items

Answer

Critical items

Answer

Non-critical items

Answer

All classifications equally

Question 2

What is the minimum effective concentration (MEC) of a high-level disinfectant?

Accepted Answer

The lowest concentration of active ingredient at which the solution still achieves high-level disinfection

Answer

The maximum concentration recommended by the manufacturer

Answer

The concentration at which the solution becomes toxic

Answer

The concentration measured when the solution is first prepared

Question 3

What is the most common high-level disinfectant used for flexible endoscope reprocessing?

Accepted Answer

Glutaraldehyde (2%) or ortho-phthalaldehyde (OPA)

Answer

Alcohol (70% isopropyl)

Answer

Hydrogen peroxide (3%)

Answer

Quaternary ammonium compounds

Question 4

What is the required final rinse procedure after high-level disinfection?

Accepted Answer

Rinse thoroughly with sterile, filtered, or high-quality water to remove all chemical residue

Answer

Rinse with tap water once

Answer

Air dry without rinsing

Answer

Wipe with a dry cloth

Question 5

What is the purpose of leak testing a flexible endoscope before high-level disinfection?

Accepted Answer

To detect perforations or seal failures that would allow fluid ingress and damage internal components or harbor organisms

Answer

To check for electrical problems

Answer

To verify the scope is the correct model

Answer

To measure the scope's internal diameter

Question 6

How should high-level disinfected items be stored if not used immediately?

Accepted Answer

In a clean, dry, ventilated area following facility policy for maximum storage duration, with forced-air drying of channels

Answer

In any available cabinet

Answer

On the decontamination counter until needed

Answer

In the original disinfectant solution for extended protection