AAMA Infection Control, Medical Asepsis, and Sterilization 2

Question 1

Which type of isolation is used for a patient with tuberculosis?

Accepted Answer

Airborne infection isolation

Answer

Tuberculosis is transmitted via airborne droplet nuclei, requiring airborne infection isolation with a negative-pressure room and N95 respirators.

Question 2

What is the minimum temperature required for moist heat (autoclave) sterilization at standard pressure?

Accepted Answer

121°C (250°F)

Answer

Standard autoclave sterilization uses 121°C (250°F) at 15 psi for a minimum of 15–30 minutes to destroy all microorganisms.

Question 3

A medical assistant is caring for a patient with MRSA. Which PPE is required beyond standard precautions?

Accepted Answer

Gown and gloves

Answer

MRSA requires contact precautions, which add a gown and gloves to standard precautions to prevent transmission via direct or indirect contact.

Question 4

Which chemical is most commonly used for high-level disinfection of semicritical items such as endoscopes?

Accepted Answer

Glutaraldehyde 2%

Answer

Glutaraldehyde 2% (e.g., Cidex) is a commonly used high-level disinfectant for heat-sensitive semicritical items like endoscopes.

Question 5

What is the purpose of a biological indicator (spore test) in sterilization monitoring?

Accepted Answer

To verify that all microorganisms including spores were destroyed

Answer

Biological indicators contain highly resistant bacterial spores (e.g., Geobacillus stearothermophilus) to verify that the sterilization process destroyed all life forms.

(AAMA) American Association of Medical Assistants Certified Practice Test

(AAMA) American Association of Medical Assistants Certified Practice Test

AAMA Infection Control, Medical Asepsis, and Sterilization 2