Rapid test used by WHO for tuberculosis ?
Ans. is 'd' i.e., Sputum AFB Sputum smear microscopy is the quickest and easiest procedure. But it lacks both sensitivity and specificity. Smears are stained by ziehl-Neelsen acid-fast stain. Sputum smear examination (by AFB stain) is the method of choice for case finding. Note : Genexpe MTB/RIF is also a fast test (results within 90 minutes), but it is not routinely recommended by WHO.
Quanteferon gold
ELISPOT
Xpe MTB
Sputum AFB