CER Human Factors in Endoscope Reprocessing

Question 1

Which personal protective equipment (PPE) is required when immersing endoscopes in a high-level disinfectant such as ortho-phthalaldehyde (OPA)?

Accepted Answer

Chemical-resistant gloves, fluid-resistant gown, eye protection, and face shield

Answer

OPA and similar high-level disinfectants are toxic chemicals that can cause skin sensitization, eye damage, and respiratory irritation. OSHA and manufacturer instructions require chemical-resistant (not just latex) gloves, a fluid-resistant gown, and face/eye protection to guard against splashes and aerosols.

Question 2

What is the primary purpose of conducting annual competency assessments for endoscope reprocessing technicians?

Accepted Answer

To verify that staff can consistently perform all reprocessing steps correctly and safely

Answer

Competency assessment ensures that each technician has the current knowledge and hands-on skills to perform every reprocessing step correctly. Gaps in technique directly increase the risk of patient infection from inadequately reprocessed scopes.

Question 3

A reprocessing technician reports persistent headaches, eye irritation, and wheezing that resolve on days off. The most likely occupational cause is:

Accepted Answer

Exposure to high-level disinfectant chemical vapors

Answer

Glutaraldehyde and OPA vapors are well-documented occupational sensitizers that cause asthma, dermatitis, rhinitis, and eye irritation — symptoms that characteristically improve when the worker is away from the chemical exposure source.

Question 4

Which ventilation requirement is most important for a manual cleaning and disinfection area where high-level disinfectants are used?

Accepted Answer

At least 10 air changes per hour with negative pressure relative to adjacent areas

Answer

Reprocessing areas using high-level disinfectants require negative pressure (to contain vapors) and a minimum of 10 air changes per hour to dilute and exhaust chemical vapors away from staff breathing zones, per OSHA and AAMI standards.

Question 5

When should a new reprocessing technician be permitted to perform endoscope reprocessing independently?

Accepted Answer

Only after initial competency has been verified through observation and skills check-off

Answer

Independent practice should only begin after a documented skills verification that the technician can correctly perform each reprocessing step. Allowing unsupervised work before competency is confirmed is a patient safety risk and violates accreditation standards.

CER - Certified Endoscope Reprocessor Practice Test

CER - Certified Endoscope Reprocessor Practice Test

CER Human Factors in Endoscope Reprocessing