ADEX Infection Control and Safety 4

Question 1

Which OSHA standard specifically requires dental employers to offer free hepatitis B vaccination to employees with occupational exposure?

Accepted Answer

Bloodborne Pathogens Standard (29 CFR 1910.1030)

Answer

OSHA's Bloodborne Pathogens Standard mandates that employers provide hepatitis B vaccination at no cost to employees who have occupational exposure to blood or OPIM.

Question 2

When using an ultrasonic scaler, the primary infection control concern regarding aerosol generation is:

Accepted Answer

Creation of aerosols and spatter containing blood and saliva

Answer

Ultrasonic scalers generate significant aerosols and spatter laden with blood, saliva, and microorganisms, requiring appropriate respiratory and eye protection.

Question 3

A surface that is difficult to disinfect, such as a dental chair adjustment lever, should be managed by:

Accepted Answer

Covering with an impervious barrier that is changed between patients

Answer

Complex or difficult-to-disinfect surfaces should be covered with single-use impervious barriers changed between patients.

Question 4

Which chemical indicator class is considered an integrating indicator and monitors all critical sterilization parameters?

Accepted Answer

Class 5 (integrating indicator)

Answer

Class 5 integrating indicators respond to all critical variables (time, temperature, steam quality) and provide the highest level of chemical monitoring.

Question 5

The recommended threshold for dental unit waterline water quality per CDC guidelines is:

Accepted Answer

<500 CFU/mL of heterotrophic bacteria

Answer

The CDC recommends that dental unit waterline output water contain <500 CFU/mL of heterotrophic bacteria, consistent with drinking water standards.

ADEX - Dental Hygiene Exam Practice Test

ADEX - Dental Hygiene Exam Practice Test

ADEX Infection Control and Safety 4