Ten years ago, a colleague’s purified protein derivative (PPD) test was read by several physicians as being positive at 13-mm induration. Disturbed by the results, we tried testing with PPD again. The ...

DEAR MAYO CLINIC: My daughter’s doctor said her PPD was positive and sent her for a chest X-ray to rule out TB. Is it possible to have a false-positive result? Her pediatrician says she should follow ...

What is the role of the polymerase chain reaction (PCR) process in the diagnosis of abdominal tuberculosis (TB) and in differentiating it from Crohn's disease? Tuberculosis may involve any part of the ...

First year health science students will need TB testing and screening prior to or at arrival. At this time, UHCS is providing a TB blood test (IGRA). The cost of this test is almost always covered by ...