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Unit 3 CMN 568 TB Lessons Questions and Answers Correct
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Unit 3 CMN 568 TB Lessons
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Unit 3 CMN 568 TB LessonsAre people who have been exposed to TB always infectious? - answer Persons with
LTBI are not infectious and do not spread organisms to others
What confirms TB diagnosis? - answer Positive M. tb culture confirms TB diagnosis
Person with LTBI (Infected):
Cannot spread it to others
TB test is positive
XR is normal
Sputum smears are negative
Should consider treatment to prevent TB
Does not require respiratory isolation - answer...
What meds are used to treat Latent TB? - answer-isoniazid (preferred) 9-month or 6
months Twice weekly
-INH-rifapentine (RPT) regimen -3 months once weekly
-rifampin-4 months daily dosing
What are the tests for TB? - answerMantoux tuberculin skin test (TST)
IGRAs-not for children <5y
QuantiFERON-TB Gold In-Tube (QFT-GIT)®, and
T-Spot.TB®
IGRAsPreferred when testing persons who might not return for TST reading and who
have received BCG vaccination
These tests do not exclude LTBI or TB disease
a Positive Mantoux test is? - answer*≥10 mm induration is classified as positive in
Recent arrivals from high-prevalence countries*
Injection drug users
Residents and employees of high-risk congregate settings
*≥15 mm is classified as positive in
Persons with no known risk factors for TB*
Wht are the s/s of TB? - answerProlonged cough (3 weeks or longer), hemoptysis
Chest pain
Loss of appetite, unexplained weight loss
Night sweats, fever
Fatigue
What are the s/s of extrapulmonary TB? - answerBlood in the urine (TB of the kidney)
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