MDRAO Decontamination Processes and Equipment 4

Question 1

Which water quality is recommended for the final rinse cycle in an automated instrument washer to prevent spotting and residue?

Accepted Answer

Softened or deionized/purified water

Answer

Softened, deionized, or purified water is used in the final rinse to minimize mineral deposits, spotting, and residue on instruments.

Question 2

When should the ultrasonic cleaner solution be changed during a work shift?

Accepted Answer

When visibly soiled or at regular intervals per facility protocol

Answer

Ultrasonic cleaner solution should be changed when visibly soiled or at regular intervals per the facility's infection control policy to maintain cleaning efficacy.

Question 3

A technician is cleaning a flexible endoscope channel with a channel brush. The brush emerges visibly soiled after the first pass. What is the correct next step?

Accepted Answer

Repeat brushing with a clean brush until the brush emerges clean

Answer

Channels must be brushed repeatedly with a clean brush until no visible soil is present, as incomplete mechanical cleaning compromises subsequent disinfection.

Question 4

Which hazard is specifically associated with glutaraldehyde use in the decontamination area?

Accepted Answer

Respiratory sensitization and mucous membrane irritation

Answer

Glutaraldehyde is a known respiratory sensitizer and mucous membrane irritant; staff must use appropriate ventilation and PPE, including respirators, when handling it.

Question 5

Which instrument defect should be identified during visual inspection in the decontamination area and reported immediately?

Accepted Answer

Cracked insulation on electrosurgical instruments

Answer

Cracked or damaged insulation on electrosurgical instruments is a patient safety hazard that must be identified, removed from service, and reported for repair.

MDRAO - Medical Device Reprocessing Association of Ontario Practice Test

MDRAO - Medical Device Reprocessing Association of Ontario Practice Test

MDRAO Decontamination Processes and Equipment 4