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

#Diagnosis #Tuberculosis #LatentTB #Tuberculin #SkinTest #TST #Interpretation #Induration #Thresholds #Diameters #PPD
Tuberculosis Skin ... #Diagnosis #Tuberculosis ... #LatentTB #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
90%) & develop latent ... TB: • Tuberculin ... - Only latent ... and Culture • CXR ... disease • Check CXR
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 ... TB: • Tuberculin ... - Only latent ... and Culture • CXR ... disease • Check CXR
Tuberculin Skin Test (Positive Mantoux Test) Result, Reading and Interpretation

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

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
LATENT TB • ... IGRA/QuantiFERON-TB ... interpreted Tuberculin ... #Latent #Active ... #LatentTB #ActiveTB
Cavitary Lesion with Air-Fluid Level on Chest XRay

70+ year old man with PMH of latent TB
Cavitary Lesion ... man with PMH of latent ... TB s/p treatment ... Labeled CXR: ... #Cavitary #CXR
Tuberculin Skin Test Interpretation - Threshold for treatment
Induration cutoff >5mm:
 • Recent exposure to an individual
Tuberculin Skin ... individual with active TB ... • Abnormal CXR ... consistent with old TB ... individuals #Tuberculosis
Primairy TB is usually clinically silent.
In 5% of infected individuals the immunity is inadequate and clinically
reactivation of the latent ... On the CXR it is ... with cavitaty formation ... #Tuberculosis # ... TB #Cavitary #SecondaryTB
TB
This patient presented first with the CXR on the left.
The findings are:
Widespread ill-defined densities, which are
first with the CXR ... Cavity in the right ... reactivation of a latent ... #Tuberculosis # ... #Cavitary #RadiologyAssistant