Tests and turnaround times to be tracked by the laboratorya

ResultRecommended turnaround time
AFB smear (negative and positive)Report AFB smear results within 24 h of specimen receipt
Positive TB NAATReport within 48 h of specimen receipt
New M. tuberculosis complex-positive culture results from any specimen sourceReport culture identification of M. tuberculosis complex within ≤21 days of specimen receipt
M. tuberculosis complex first-line AST results on isolates that demonstrate resistance to any of the first-line drugsReport first-line AST result within ≤28 days of specimen collection
  • a See references 242 and 334.