Pastakia Flashcards
what is a TST (PPD) test
tuberculin skin test, takes days
what is an IGRA or quanterferon test
interferon gamma release assay test
blood test
takes hours
when is a TST (PPD) test positive
active TB
subclinical TB
latent TB
eliminated TB (acquired)
when is IGRA (quanterferon) positvie
active TB
subclinical TB
latent TB
eliminated TB (acquired)
when is a sputum smear positive
always negative
unless active TB then maybe positive
when is a culture positive
active TB or sometimes subclinical TB
what med would you avoid giving for TB if HIV co-infection
rifampin
drug suseptible TB
sensitive to first line TB agents
monoresistant TB
sensitive to just one TB agent
polyresistant TB
resistance to more than one anti-TB drug but not isoniazid and rifampin
multidrug resistant TB
resistant to rifampin and isoniazid
extensively drug resistant TB
resistant to rifampin, isoniazid, injectible agent, and FQ
what change was made to the guidelines?
new regimen of 4 months
rifapentine
isoniazid
moxifloxacin
pyrazinamide
(rifapentine and moxifloxacin new change)
