Human Factors in Endoscope Reprocessing Flashcards

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

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

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.

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

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

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.

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

Answer: Exposure to high-level disinfectant chemical vapors

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.

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

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

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.

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

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

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.

Which ergonomic design feature is most important in a manual cleaning sink for endoscope reprocessing?

Answer: Sink height and depth adjusted to minimize forward bending and shoulder elevation for the technician

Reprocessing involves repetitive manual cleaning that can cause musculoskeletal injury. Sinks should be positioned so technicians can work with a neutral spine, elbows near waist height, and without excessive forward reach — reducing cumulative strain injury risk.