Polymerase Chain Reaction Tests for TB
{"Image DocumentName": "Polymerase Chain Reaction Tests for TB", "Image ImageDescription": "1,090 tissue and body fluid specimens from 1,032 patients. with suspected TB were subjected to acid-fast bacillus (AFB) smear, culture, and the AMPLICOR MTB PCR test. The PCR was negative for all eight specimens that yielded MAC only. The sensitivity, specificity, positive predictive value, and negative predictive value for the AMPLICOR MTB PCR test were 76.4%, 99.8%, 92.8%, and 99.2%, respectively. PCR results were available within 6.5 hours, compared with an average of 3 weeks for culture of M tuberculosis. Conclusions: These data establish the utility of the AMPLICOR MTB PCR test for the rapid detection of M tuberculosis in tissue and body fluid specimens other than respiratory secretions. (CHEST 1998; 113: )", "Image XResolution": "37", "Image YResolution": "37", "Image ResolutionUnit": "Pixels/Centimeter", "Image Software": "SlidePlayer", "Image YCbCrPositioning": "Centered"}