Correct Answers | Latest Update
The Mantoux tuberculin skin test (TST) is given by using a needle and
syringe to inject 0.1 ml of 5 tuberculin units of liquid tuberculin between the
layers of the skin (intradermally), usually on the forearm. - ✔✔True
The presence of erythema (redness) at the site of the skin test injection
indicates that a person has TB infection. - ✔✔False
From 1993 through 2013, there was a steady decline in the number of TB
cases reported annually in the United States. - ✔✔True
People with symptoms of TB should NOT be evaluated for TB disease if
they have a negative TST or interferon-gamma release assay (IGRA)
result. - ✔✔False
Extrapulmonary TB occurs in the lungs. - ✔✔False
The current classification system for TB is based on the pathogenesis of
TB. - ✔✔True
A person who has latent TB infection, but not TB disease, is infectious to
others. - ✔✔False
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,The results of the acid-fast bacilli (AFB) smear examination can be used to
help determine the infectiousness of a TB patient. - ✔✔True
Drug susceptibility tests should be done when a patient is first found to
have a positive culture for M. tuberculosis. - ✔✔True
The results of the chest x-ray alone can be used to confirm that a person
has TB disease. - ✔✔False
Multidrug-resistant TB is resistant to at least the drugs isoniazid and
rifampin. - ✔✔True
Treatment for latent TB infection should never be given to a person who
has a negative TST or IGRA result - ✔✔False
TB disease must be treated with several drugs to which the bacilli are
susceptible. - ✔✔True
Drug resistance can develop when patients do not follow treatment
regimens as prescribed - ✔✔True
The intensive phase of treatment for TB disease should include four drugs:
isoniazid, rifampin, pyrazinamide, and ethambutol. - ✔✔True
Usually, only patients who have pulmonary or laryngeal TB are infectious. -
✔✔True
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, Airborne infection isolation (AII) rooms help prevent the spread of TB by
being at negative pressure relative to other parts of the facility. - ✔✔True
Sputum induction and other cough-inducing procedures performed on TB
patients should be done in waiting rooms, if possible. - ✔✔False
Abusing drugs or alcohol can increase the risk that latent TB infection will
progress to TB disease. - ✔✔True
People who were recently infected with M. tuberculosis (within the past 2
years) are at increased risk that latent TB infection will progress to TB
disease. - ✔✔True
For patients with symptoms of TB disease, clinicians should wait for TST or
IGRA results before starting other diagnostic tests. - ✔✔False
A health care or congregate setting's TB infection-control program should
be based on a three-level hierarchy of control measures (i.e., administrative
controls, environmental controls, and respiratory-protection controls). -
✔✔True
Which TB medication(s) can be associated with hepatitis?
A)Ethambutol only
B)Isoniazid, pyrazinamide, and rifampin
C)Streptomycin only
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©NINJANERD 2025/2026. YEAR PUBLISHED 2025.