TB

What percentage of the world's population is infected with TB?

25% 1/4 of the world's population is infected with TB. This means they have been infected with a latent form of TB but have not yet fallen ill.

What is the preferred length of treatment for TB disease?

9 months The preferred treatment for active TB disease is generally a combination of 4 drugs, isoniazid, rifampin, ethambutol, pyrazinamide for a period of 6 to 9 months.

True or False: A negative result to either a TST or IGRA test shows that a patient is indeed negative for TB.

False A negative reaction to any of the tests does not exclude the diagnosis of LTBI or TB disease. Decisions should include patient history and clinical information when using IGRA or TST results. Decisions should not be based on TST or IGRA results alone.

Which is true regarding TB testing for health care professionals?

Health care providers should be screened for TB upon hire or before being placed in the health care setting Health care providers should be screened for TB upon hire or before being placed in a health care setting. Annual or serial testing is no longer required unless there is known exposure or transmission.

Which of the following statements about respiratory protection is true? (choose the one best answer)

Only A & B are correct Surgical masks are not for health care worker use. They prevent an infected individual from exhaling the droplet nuclei out into the air while a respirator prevents health care workers from inhaling droplet nuclei.