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

#Diagnosis #TB #Tuberculosis #Tuberculin #SkinTest #TSTs #IGRA #FalseNegatives
False-Negative IGRA ... SkinTest #TSTs #IGRA ... #FalseNegatives
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
FalsePositive #FalseNegative
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
release assay (IGRA ... TuberculinSkinTest #IGRA
Causes of Secondary IgA Nephropathy - Differential Diagnosis Algorithm
 • GI disorders: Celiac disease, Crohn's disease,
Causes of Secondary IgA ... Schistosomiasis • Cancers: IgA ... #Secondary #IgA
Management of adult IgA Vasculitis (Henoch-Schönlein purpura) - Treatment algorithm for the management of IgAV patients
Management of adult IgA ... Management of IgA ... TerrierBen #IgA
Glomerulonephritis - Differential Diagnosis Framework
ANCA:
 • C-ANCA: GPA (Wegener's)
 • P-ANCA: Microscopic Polyangiitis, Eosinophilic GPA (Churg
Normal C3/C4 (IgA ... ): IgA Nephropathy
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
negative with IgA ... patients with IgA ... and specificity IgA ... patients with IgA ... specific as tTG IgA
IgA Vasculitis – Henoch Scholein Purpura: Pathogenesis and Clinical Findings

 - Infectious Agents - 50% have
IgA Vasculitis – ... immune response, IgA ... of IgA1 -> Decr IgA ... -> adhesion of IgA ... ankles) #HSP #IgA
Diagnosis of IgA Vasculitis (Henoch-Schönlein Purpura) - French Vasculitis Study Group 

1) Suggestive clinical manifestations
Diagnosis of IgA ... Elevated serum IgA ... - Dominant IgA ... with vascular IgA
Primary Metabolic Alkalosis - Differential Diagnosis Algorithm
Volume Depleted - 2° hyperaldosteronism
 • Low Urine Cl-: Vomiting,
Adenoma, BAH, AME, GRA ... mineralocorticoid excess; GRA