CMDRT - Certified Medical Device Reprocessing Technician Decontamination Processes Questions and Answers

Question 1

A medical device reprocessing technician is manually cleaning a set of stainless steel surgical instruments.
Which of the following cleaning agents is most appropriate for breaking down protein-based soils like blood and tissue?

Accepted Answer

Protease-based enzymatic cleaner

Answer

Glutaraldehyde solution

Answer

70% isopropyl alcohol

Answer

Saline solution

Question 2

A tray of complex surgical instruments with lumens and box locks arrives in the decontamination area. After manual cleaning, what is the most effective process for removing fine, unseen debris from hard-to-reach areas?

Accepted Answer

Ultrasonic cleaning

Answer

High-level disinfection soak

Answer

Rinsing with sterile water

Answer

Washer-disinfector cycle

Question 3

When manually cleaning reusable medical devices, what is the primary reason for using a neutral pH detergent?

Accepted Answer

To prevent corrosion and damage to the instruments

Answer

To activate the chemical indicators

Answer

To ensure the instruments are sterile after cleaning

Answer

To meet the requirements for thermal disinfection

Question 4

A new technician in the decontamination area is observed placing heavy orthopedic instruments on top of delicate microsurgical instruments in the washer-disinfector basket. Which principle of decontamination is being violated?

Accepted Answer

Proper loading and arrangement of instruments

Answer

Following manufacturer's instructions for use (IFU)

Answer

Use of appropriate personal protective equipment (PPE)

Answer

Verification of water quality

Question 5

According to CSA Z314-18, what is the very first step in the decontamination process for a soiled reusable medical device?

Accepted Answer

Thorough cleaning and rinsing

Answer

Ultrasonic cleaning

Answer

Application of a disinfectant spray

Answer

Immediate sterilization

Question 6

During the manual cleaning of an endoscope, a technician uses a steel wire brush to clean the internal channel. Why is this action incorrect and what should be used instead?

Accepted Answer

It is incorrect; a metal brush can damage the channel lining, and a soft, plastic bristle brush should be used.

Answer

It is correct; steel brushes are needed for tough bioburden.

Answer

It is incorrect; channels should only be flushed and not brushed.

Answer

It is incorrect; only enzymatic foam should be used, with no brushing required.