TB Test Core Knowledge and Fundamentals 2

Question 1

Which bacterium causes tuberculosis?

Accepted Answer

Mycobacterium tuberculosis

Answer

Tuberculosis is caused by Mycobacterium tuberculosis, a slow-growing aerobic bacterium.

Question 2

A two-step TST is recommended for which population?

Accepted Answer

Adults who will be tested repeatedly, such as healthcare workers

Answer

Two-step testing is used for people who will be retested periodically, like healthcare workers, to establish a baseline and distinguish boosting from new infection.

Question 3

What is the primary route of Mycobacterium tuberculosis transmission?

Accepted Answer

Airborne droplet nuclei

Answer

TB spreads via airborne droplet nuclei (<5 microns) that are expelled when an infectious person coughs, sneezes, or speaks.

Question 4

In the United States, which federal agency publishes TB testing guidelines for healthcare settings?

Accepted Answer

CDC

Answer

The Centers for Disease Control and Prevention (CDC) issues TB testing and prevention guidelines for healthcare and other settings.

Question 5

Which of the following best describes latent TB infection (LTBI)?

Accepted Answer

TB bacteria are present but not causing active disease or symptoms

Answer

In LTBI, the immune system contains the bacteria so the person has no symptoms and is not infectious, but bacteria remain alive.

(TB Test) Tuberculosis Test Certification Practice Test

(TB Test) Tuberculosis Test Certification Practice Test

TB Test Core Knowledge and Fundamentals 2