CBIC Environmental Cleaning 4

Question 1

ATP bioluminescence testing in healthcare environmental cleaning is PRIMARILY used to:

Accepted Answer

Measure organic soil burden as a surrogate for cleaning efficacy

Answer

ATP testing measures adenosine triphosphate as a marker of organic contamination, providing a rapid surrogate measure of cleaning adequacy rather than identifying specific pathogens.

Question 2

Which of the following is a recognized limitation of quaternary ammonium compounds (QACs) as surface disinfectants?

Accepted Answer

They are inactivated by organic matter and hard water

Answer

QACs can be significantly inactivated by organic soil and hard water, reducing their disinfecting efficacy when surfaces are not pre-cleaned.

Question 3

In a healthcare facility, 'enhanced cleaning' protocols are MOST appropriately triggered by:

Accepted Answer

Identification of a cluster of HAIs or an outbreak

Answer

Enhanced cleaning protocols with increased frequency and scope are indicated when HAI clusters or outbreaks are identified to reduce environmental reservoir.

Question 4

Which of the following personal protective equipment (PPE) is minimally required for EVS staff handling blood or body fluid spills?

Accepted Answer

Gloves and gown at minimum

Answer

Standard precautions require gloves and a gown (at minimum) when handling blood or body fluid spills to prevent skin and clothing contamination.

Question 5

A patient with active MRSA bacteremia is placed in a single room. Upon discharge, the most appropriate terminal cleaning approach is:

Accepted Answer

Disinfection with an EPA-registered hospital disinfectant with MRSA kill claim

Answer

MRSA is killed by standard EPA-registered hospital disinfectants with an MRSA efficacy claim; sporicidal agents are not required as MRSA does not form spores.

CBIC - Certification Board of Infection Control Practice Test

CBIC - Certification Board of Infection Control Practice Test

CBIC Environmental Cleaning 4