15 results
Identify a Positive Tuberculosis (TB) Skin Test
#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters
Tuberculosis (TB ... #Tuberculosis #LatentTB ... #Tuberculin #SkinTest
Tuberculosis Skin Test Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters #PPD
#Tuberculosis #LatentTB ... #Tuberculin #SkinTest
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
90%) & develop latent ... release assay (IGRA ... quantiferon-gold (IGRA ... simultaneous TST or IGRA ... IGRA #Tuberculosis
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
90%) & develop latent ... release assay (IGRA ... quantiferon-gold (IGRA ... simultaneous TST or IGRA ... IGRA #Tuberculosis
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
False-Negative IGRA ... #Diagnosis #TB ... Tuberculosis #Tuberculin #SkinTest ... #TSTs #IGRA #FalseNegatives
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
Tuberculosis Testing LATENT ... positive TST or IGRA ... IGRA/QuantiFERON-TB ... #Latent #Active ... #LatentTB #ActiveTB
Tuberculin Skin Test (Positive Mantoux Test) Result, Reading and Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation
#Tuberculosis #LatentTB ... #Tuberculin #SkinTest
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
individual with active TB ... consistent with old TB ... Tuberculosis #Tuberculin #SkinTest
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
release assay (IGRA ... TuberculinSkinTest #IGRA ... Spectrum #Table #Latent
Hematuria - Differential Diagnosis Framework

Gross Hematuria: Red/Dark urine
 • 1ml blood/liter urine can induce color change
Glomerular Bleeding - IgA ... Mesangioproliferative GN without IgA ... Bacterial) • TB