CMDRT - Certified Medical Device Reprocessing Technician High-Level Disinfection Questions and Answers 3

Question 1

What ventilation requirements exist for areas where high-level disinfectants are used?

Accepted Answer

Adequate ventilation including local exhaust ventilation to keep chemical vapour exposure below occupational exposure limits

Answer

No special ventilation is needed

Answer

Only a window needs to be open

Answer

Standard office HVAC is sufficient

Question 2

What is the Spaulding classification of a laryngoscope blade, and what minimum reprocessing level does it require?

Accepted Answer

Semi-critical — requires at minimum high-level disinfection

Answer

Non-critical — low-level disinfection only

Answer

Critical — requires sterilization

Answer

It depends on the patient's diagnosis

Question 3

What are the occupational health risks associated with glutaraldehyde exposure during high-level disinfection?

Accepted Answer

Respiratory sensitization, skin dermatitis, eye irritation, and asthma-like symptoms

Answer

There are no health risks with glutaraldehyde

Answer

Only mild skin dryness

Answer

Temporary colour changes to the skin

Question 4

A device labelled as 'single-use' by the manufacturer is being considered for reprocessing. What is the Canadian regulatory position?

Accepted Answer

Reprocessing of single-use devices is regulated by Health Canada and requires a licensed reprocessor to validate safety and effectiveness

Answer

Single-use devices can always be reprocessed if cleaned thoroughly

Answer

It is completely banned in Canada

Answer

Individual hospitals can decide without regulatory oversight

Question 5

What is the purpose of rinsing devices thoroughly after high-level disinfection?

Accepted Answer

To remove residual disinfectant that could cause tissue irritation or toxicity in patients

Answer

To apply a protective coating

Answer

To warm the devices before use

Answer

To test the integrity of the device

Question 6

Which microorganisms are used as benchmark test organisms to validate the efficacy of high-level disinfection?

Accepted Answer

Mycobacterium species (such as M. terrae or M. bovis) because of their high resistance to chemical disinfectants

Answer

Only E. coli

Answer

Common cold viruses

Answer

Only fungal spores