Episode Chapters
- Motivational Interviewing12:29Irritable Bowel Syndrome (IBS) - Part 1Free Chapter16:06Paperchase 1 - The SWITCH 2 Trial8:03Impostor Syndrome13:45Things I Do, But Should I? - Conjunctivitis11:05Hypokalemia: The Not So Special K7:41Paper Chase 2 - SWITCH 1 Trial2:50When The Tricuspid Valve Regurgitates12:12Irritable Bowel Syndrome (IBS) - Part 219:40Paper Chase 3 - Do Steroid Injections Make You Weak in the Knees?6:12Latent Tuberculosis Infection20:38Paper Chase 4 - IV Contrast and AKI5:14Thrombosis in Transgendered Medicine16:08Case of the Month: CIDP19:53Paper Chase 5 - A Zap on the Back for Chronic Low Pain6:06The Summary17:18
Latent TB is common in many parts of the world and amongst certain populations in North America. Diagnosis is made by tuberculin skin test or by interferon gamma release assay testing. Treatment gold-standard is nine month of isoniazid (INH).
You Can Do It!! Full episode audio for MD edition 195:21 min - 92 MB - M4AHippo Peds RAP September 2017 Written Summary 315 KB - PDF
Tulja P. - June 13, 2020 6:33 AM
Patient who received at BCG vaccine as a child with no risk factors for TB, no previous history or exposure to TB and is healthy without any medical conditions. When interpreting the tuberculin skin test, do you still use the >15mm as the cut off for a positive PPD test?
Neda F., MD - June 16, 2020 4:38 AM
Yes, but in patients who've received the BCG vaccine, it's preferred to obtain a blood test like IGRA/quantiferon gold rather than perform a tuberculin skin test.
Sungjin K. - December 31, 2020 9:09 PM
After treatment with rifampin and isoniazid, how do we confirm if the treatment was effective for latent TB? Would we repeat the Quantiferon study? If so, how often? Would the quantiferon study also stay positive like the TST?
Neda F., MD - January 4, 2021 10:37 AM
There is no need to repeat the quantiferon test or other IGRA, which are likely to remain positive after treatment. The patient is presumed to have been treated effectively, and they should monitor themselves for any symptoms of LTBI in the future.