76 results
Causes of False-Positive and False-Negative IGRA and TST Results

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
False-Negative IGRA ... #Tuberculosis #Tuberculin ... SkinTest #TSTs #IGRA
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
have negative tuberculin ... release assay (IGRA ... TuberculinSkinTest #IGRA
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
positive TST or IGRA ... IGRA/QuantiFERON-TB ... interpreted Tuberculin
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Latent TB: • Tuberculin ... release assay (IGRA ... quantiferon-gold (IGRA ... simultaneous TST or IGRA ... TB with TST or IGRA
Tuberculosis Overview

10 million new M. tuberculosis infections/year
Facultative intracellular rod-shaped bacteria
Multidrug-resistant tuberculosis (MDR-TB) accounts for 4.6% of
Latent TB: • Tuberculin ... release assay (IGRA ... quantiferon-gold (IGRA ... simultaneous TST or IGRA ... TB with TST or IGRA
Tuberculin Skin Test (Positive Mantoux Test) Result, Reading and Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation
Tuberculin Skin ... Tuberculosis #LatentTB #Tuberculin
Tuberculosis Skin Test Interpretation

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters #PPD
Tuberculosis #LatentTB #Tuberculin
Identify a Positive Tuberculosis (TB) Skin Test
#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters
Tuberculosis #LatentTB #Tuberculin
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin ... #Tuberculosis #Tuberculin
Hansen's Disease (Leprosy)
 • Transmission - not completely understood, ?nasal droplets
 • Symptoms appear ~5 years
leprae complex: • Tuberculoid ... and borderline tuberculoid ... Treatment Regimen: • Tuberculoid