90 results
The Spectrum of Tuberculosis

As shown in the graphic from our Primer, exposure to M. tuberculosis can
release assay (IGRA ... #Tuberculosis #Testing ... TuberculinSkinTest #IGRA ... #Spectrum #Table
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
False-Negative Contingency Table ... FalsePositive #FalseNegative ... #Contingency #Table
What is Fecal Occult Blood Testing (FOBT)
 • Screening for colorectal cancer in average risk population
Fecal Occult Blood Testing ... the ambulatory setting ... to unnecessary testing ... #OccultBlood #Testing ... FalsePositives #FalseNegatives
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
Tuberculosis Testing

LATENT TB
• LTBI is diagnosed when an asymptomatic patient has a positive TST or IGRA
positive TST or IGRA ... IGRA/QuantiFERON-TB ... Tuberculin skin testing ... microscopy • Testing ... #Tuberculosis #Testing
Monoclonal Gammopathy Testing
Strengths, Weaknesses and Accuracy Compared
 - SPEP 
 - IFE 
 - FLC
Monoclonal Gammopathy Testing ... Monoclonal #Gammopathy #Testing ... Laboratory #Comparison #Table
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
negative with IgA ... patients with IgA ... patients with IgA ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
Clinical Presentation and Diagnosis of Common Causes of Vaginitis

#Vaginitis #Differential #Diagnosis #Comparison #Table #Testing #Gynecology #OBGyn
Diagnosis #Comparison #Table ... #Testing #Gynecology
Differential Diagnosis of Headache - Table

 - Cluster headache
 - Migraine
 - Paroxysmal hemicrania
 - Short-lasting
of Headache - Table ... hemicrania - Short-lasting ... injection and tearing ... Differential #Comparison #Table
Who to test for BRCA 1/2?
Female Breast Cancer:
 • ≤ 45-50 years at diagnosis
 • Triple
cancers in this table ... factors in this table ... degree relative meeting ... criteria for testing ... BrighamChiefs #BRCA #testing