NDHCE Infection Control and Safety 2

Question 1

Which CDC guideline category covers procedures for decontamination of environmental surfaces in the dental operatory?

Accepted Answer

Standard Precautions

Answer

Standard Precautions encompass all practices used to prevent transmission of infectious diseases, including surface decontamination procedures in clinical areas.

Question 2

A dental hygienist discovers that the autoclave failed its weekly spore test. What is the appropriate next step?

Accepted Answer

Remove the autoclave from service, recall possibly non-sterile instruments, and contact the manufacturer

Answer

A failed spore test indicates the autoclave did not achieve sterilization; it must be taken out of service, and instruments processed since the last successful test must be retrieved and re-sterilized.

Question 3

Which hepatitis virus is transmitted via the fecal-oral route and does NOT become chronic?

Accepted Answer

Hepatitis A (HAV)

Answer

Hepatitis A virus (HAV) is transmitted via the fecal-oral route, causes acute self-limiting illness, and does not lead to chronic infection.

Question 4

Which of the following disinfectants is effective against Mycobacterium tuberculosis and is classified as an intermediate-level disinfectant?

Accepted Answer

Bleach (diluted sodium hypochlorite)

Answer

Diluted sodium hypochlorite (bleach, 1:10 dilution) is an EPA-registered intermediate-level disinfectant effective against M. tuberculosis, HBV, HIV, and most bacteria.

Question 5

Under OSHA's Bloodborne Pathogens Standard, the Exposure Control Plan must be reviewed and updated at least:

Accepted Answer

Annually

Answer

OSHA requires the Exposure Control Plan to be reviewed and updated at least annually, and whenever new procedures or tasks are added.

NDHCE - National Dental Hygiene Certification Examination Practice Test

NDHCE - National Dental Hygiene Certification Examination Practice Test

NDHCE Infection Control and Safety 2