CCMA Infection Control and Sterilization 5

Question 1

A medical assistant is caring for a patient with suspected norovirus gastroenteritis. Which hand hygiene method is most effective against norovirus?

Accepted Answer

Soap and water for at least 20 seconds

Answer

Norovirus is a non-enveloped virus resistant to alcohol-based hand rubs; soap and water is the preferred method as it mechanically removes the virus.

Question 2

Which of the following is the correct term for the process that eliminates all microorganisms except high-level bacterial spores?

Accepted Answer

High-level disinfection

Answer

High-level disinfection destroys all microorganisms except large numbers of bacterial spores and is used for semi-critical items like endoscopes.

Question 3

During venipuncture, the medical assistant sustains a needlestick injury. What is the first immediate action?

Accepted Answer

Wash the site thoroughly with soap and water

Answer

The immediate first step after a needlestick is to wash the wound site thoroughly with soap and water to reduce the risk of bloodborne pathogen transmission.

Question 4

Which personal protective equipment (PPE) is appropriate when handling a specimen container with visible blood on the outside?

Accepted Answer

Gloves, gown, and face shield

Answer

Visible contamination on the outside of a specimen container poses a splash and contact risk, requiring gloves, gown, and face shield at minimum.

Question 5

Which sterilization method is most appropriate for heat-sensitive flexible endoscopes?

Accepted Answer

Ethylene oxide (EtO) gas sterilization

Answer

Ethylene oxide gas sterilization operates at low temperatures, making it suitable for heat-sensitive and moisture-sensitive equipment like flexible endoscopes.

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA Infection Control and Sterilization 5