What is the next step in evaluation a + PPD?

Sputum x 3 ( 8-24 hours apart including am sample) for AFB smears and culture on each. NAAT done through Washington State Public Health Lab. or Expert testing on sputum X 2. ( this also give you rifampin resistance and done in few hours) Also check labs: baseline LFT, HIV, Hep panel. CXR with AP view.