16 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 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 ... characteristic features Clinical ... TB: • Tuberculin ... and Culture • CXR ... disease • Check CXR
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
LATENT TB • ... result with no clinical ... interpreted Tuberculin ... #Latent #Active ... #InfectiousDiseases
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 ... characteristic features Clinical ... TB: • Tuberculin ... and Culture • CXR ... disease • Check 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
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
The Spectrum of Tuberculosis ... have negative tuberculin ... ‏ #Diagnosis #InfectiousDiseases ... #Tuberculosis # ... Spectrum #Table #Latent
Miliary Tuberculosis 
Hematogenous dissemination of Mycobacterium tuberculosis 
Clinical: 
 • Failure to thrive 
 • Fever
Miliary Tuberculosis ... Mycobacterium tuberculosis ... Clinical: ... #TB #Pulmonary ... #InfectiousDiseases
Pott's Disease in Tuberculosis - Diagnosis and Management Summary
Epidemiology:
 - Typically from TB endemic areas
 -
Pott's Disease in Tuberculosis ... extrapulmonary cases Clinical ... Mycobacterium tuberculosis ... tissue damage - CXR ... Potts #Disease #Tuberculosis
Pulmonary Tuberculosis - Patterns of Involvement
 • Scarring, Nodules and Consolidation
    - Lobar
Pulmonary Tuberculosis ... drdevrad #Pulmonary #Tuberculosis ... #TB #Patterns # ... chest #xray #clinical ... #radiology #CXR
Primairy TB is usually clinically silent.
In 5% of infected individuals the immunity is inadequate and clinically
clinically silent ... inadequate and clinically ... reactivation of the latent ... On the CXR it is ... #CXR #Tuberculosis