Decontamination and Cleaning Processes Questions and Answers Flashcards

What is the recommended minimum water temperature for the initial rinse of surgical instruments at the point of use?

Answer: Cold or lukewarm water below 110°F

Cold or lukewarm water below 110°F is recommended for the initial rinse to prevent protein coagulation on instrument surfaces.

Which cleaning method uses high-frequency sound waves to remove soil from instrument surfaces?

Answer: Ultrasonic cleaning

Ultrasonic cleaning uses high-frequency sound waves (typically 35-47 kHz) to create cavitation bubbles that implode and dislodge soil from instrument surfaces.

What is the primary purpose of enzymatic detergents in instrument decontamination?

Answer: To break down organic matter such as blood and tissue

Enzymatic detergents contain specific enzymes (proteases, lipases, amylases) that break down organic matter such as blood proteins, fats, and carbohydrates.

How often should the cleaning solution in an ultrasonic cleaner be changed?

Answer: At least daily or when visibly soiled

Ultrasonic cleaning solution should be changed at least daily or whenever it becomes visibly soiled to maintain cleaning efficacy.

What is the correct order of steps in the decontamination process for surgical instruments?

Answer: Pre-rinse, clean, rinse, dry

The correct decontamination sequence is pre-rinse (remove gross soil), clean (manual or mechanical), rinse (remove detergent residue), and dry (prevent water spots and corrosion).

What personal protective equipment is required when manually cleaning contaminated surgical instruments?

Answer: Gloves, fluid-resistant gown, face shield or mask with eye protection

Manual cleaning of contaminated instruments requires heavy-duty utility gloves, a fluid-resistant gown, and face protection to protect against splashes and sharps injuries.