CIS Decontamination and Cleaning Processes Questions and Answers 2

Question 1

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

Accepted Answer

Cold or lukewarm water below 110°F

Answer

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

Question 2

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

Accepted Answer

Ultrasonic cleaning

Answer

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

Question 3

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

Accepted Answer

To break down organic matter such as blood and tissue

Answer

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

Question 4

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

Accepted Answer

At least daily or when visibly soiled

Answer

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

Question 5

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

Accepted Answer

Pre-rinse, clean, rinse, dry

Answer

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).

CIS - Certified Instrument Specialist Practice Test

CIS - Certified Instrument Specialist Practice Test

CIS Decontamination and Cleaning Processes Questions and Answers 2