8 results
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
diseased by the screening ... Specificity is the ... scores on the screening ... #Calculation #Table ... #PPV #NPV #Formulas
COVID19 Testing - PCR vs CT - Sensitivity and Specificity

Original Data via https://pubs.rsna.org/doi/full/10.1148/radiol.2020200642

Admission laboratory patterns in
COVID19 Testing ... - PCR vs CT - Sensitivity ... and Specificity ... .2020200642 Admission laboratory ... #Coronavirus #VisualAbstract
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
and first-level screening ... and specificity ... Celiac #Disease #Testing ... #Laboratory #Tests ... Diagnosis #Workup #Table
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
Colorectal Cancer Screening ... , 94% specificity ... Cancer #colon #Screening ... Tests #comparison #table ... gastroenterology #CRC #Testing
ACA Colorectal Cancer Screening Guidelines

When to Screen?
When to Stop?
Family History

Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based
Colorectal Cancer Screening ... Colorectal Cancer Screening ... Cancer #colon #Screening ... Tests #comparison #table ... gastroenterology #CRC #Testing
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... Step 1) Screening ... have almost 100% specificity ... for AI (but low sensitivity ... require Cosyntropin testing
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
has higher specificity ... test but lower sensitivity ... more time for the laboratory ... Screening Tests ... Rheumatoid #Arthritis #laboratory
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Sensitivity (rule ... out – screening ... Specificity (rule ... FN) Higher specificity ... Biostatistics #formulas