CCMA Infection Control and Sterilization 4

Question 1

A patient with active pulmonary tuberculosis is being admitted. Which type of isolation precautions should be implemented?

Accepted Answer

Airborne precautions

Answer

Tuberculosis is transmitted via airborne droplet nuclei, requiring airborne precautions including a negative-pressure room and N95 respirator.

Question 2

Which chemical indicator is used to verify that steam sterilization conditions were adequate inside a wrapped pack?

Accepted Answer

Internal chemical integrator

Answer

An internal chemical integrator placed inside the pack responds to all critical sterilization parameters (time, temperature, steam) to verify adequate exposure.

Question 3

When performing a wound dressing change using sterile technique, the medical assistant accidentally touches the sterile field with a bare hand. What is the correct action?

Accepted Answer

Discard the field and set up a new sterile field

Answer

Any break in sterile technique contaminates the entire field; the field must be discarded and a completely new sterile setup must be established.

Question 4

Which of the following pathogens is most resistant to standard disinfection and sterilization methods, requiring special decontamination protocols?

Accepted Answer

Clostridium difficile spores

Answer

C. difficile spores are highly resistant to alcohol-based hand sanitizers and many disinfectants, requiring soap and water hand hygiene and sporicidal agents like bleach.

Question 5

A medical assistant is processing reusable instruments after a procedure. What is the correct order of steps?

Accepted Answer

Clean → Rinse → Disinfect → Sterilize

Answer

Instruments must be cleaned and rinsed first to remove organic debris before disinfection or sterilization can be effective.

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA - Certified Clinical Medical Assistant Practice Test

CCMA Infection Control and Sterilization 4