CDC Infection Control & Prevention 2

Question 1

Which CDC transmission-based precaution category is MOST relevant when treating a dental patient with active pulmonary tuberculosis?

Accepted Answer

Airborne precautions

Answer

Active pulmonary TB is transmitted via airborne droplet nuclei, requiring airborne precautions including N95 respirators and negative-pressure rooms.

Question 2

According to OSHA's Bloodborne Pathogen Standard, hepatitis B vaccination must be offered to dental employees within how many days of hire?

Accepted Answer

10 days

Answer

OSHA requires employers to offer hepatitis B vaccination to occupationally exposed employees within 10 working days of initial assignment.

Question 3

What is the minimum temperature required for steam autoclave sterilization at 15 psi pressure?

Accepted Answer

250°F (121°C)

Answer

Standard gravity displacement steam sterilization at 15 psi requires a minimum temperature of 121°C (250°F).

Question 4

A dental worker sustains a needlestick from a patient of unknown HIV status. What is the FIRST priority action?

Accepted Answer

Wash the wound thoroughly with soap and water

Answer

The immediate first step is to thoroughly wash the wound with soap and water to reduce pathogen load before any other intervention.

Question 5

Which EPA registration category indicates a chemical disinfectant is effective against Mycobacterium tuberculosis and can be used as an intermediate-level disinfectant in dentistry?

Accepted Answer

Tuberculocidal

Answer

Tuberculocidal disinfectants are classified as intermediate-level agents and are appropriate for semi-critical dental surfaces.

(CDC) Certified Dental Coder Practice Test

(CDC) Certified Dental Coder Practice Test

CDC Infection Control & Prevention 2