tag:blogger.com,1999:blog-12660458.post3279540334456673456..comments2023-09-01T10:33:09.297-04:00Comments on Pulmonary Roundtable: TuberculosisUnknownnoreply@blogger.comBlogger1125tag:blogger.com,1999:blog-12660458.post-74038718405521344242007-10-13T23:31:00.000-04:002007-10-13T23:31:00.000-04:00The specificity of the Quantiferon test is well ov...The specificity of the Quantiferon test is well over 99% in latent Tb. He is systemically well and the advantage that you have with the Quantiferon In Tube is that you would know that he is not anergic as a reason for the negative response. (The problem with the skin test is that the lack of response might have indicated anergy, but the Quantiferon test controls for this).<BR/><BR/>The nodules and negative sputum do not suggest active Tb. QFT is about 80% sensitive in active Tb. He might have had exposure to Tb or some other infection to cause the nodules in the past, but the negative Quantiferon indicates that he does not need treatment.Anonymousnoreply@blogger.com