8 results
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
Colorectal Cancer Screening ... for CRC, Poor sensitivity ... Cancer #colon #Screening ... Tests #comparison #table ... #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 ... for CRC, Poor sensitivity ... Tests #comparison #table ... #Testing #Indications
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
diseased by the screening ... Specificity is the ... it has a narrow focus ... #Calculation #Table ... #PPV #NPV #Formulas
Small Bowel Obstruction Testing Accuracy
#Diagnosis #SBO #Testing #Accuracy #Sensitivity #Specificity #KUB #AbdominalXRay #CT #POCUS #LikelihoodRatio #Comparison
Bowel Obstruction Testing ... #Accuracy #Sensitivity ... #Specificity #KUB ... AbdominalXRay #CT #POCUS ... LikelihoodRatio #Comparison #Table
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
and first-level screening ... and specificity ... and specificity ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
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
respectively Screening ... - CCP antibody testing ... has higher specificity ... test but lower sensitivity ... Screening Tests
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