16 results
Test Characteristics of Physical Exam, Imaging, and LRINEC 
Score for the Identification of Necrotizing Fasciitis (Sensitivity,
Test Characteristics ... (Sensitivity, Specificity ... Fasciitis #LRINEC #Testing ... #Accuracy #PhysicalExam ... #Sensitivity #Specifiity
Cholecystitis Diagnostic Test Characteristics  

Sensitivity, Specificity and Likelihood Ratios of Labs, Physical Exam findings, and
Cholecystitis Diagnostic Test ... Sensitivity, Specificity ... Cholecystitis #Testing ... Characteristics #Table ... LikelihoodRatio #Accuracy
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Sensitivity Specificity ... False-Negative Contingency Table ... Specificity of a ... #Contingency #Table ... ConfusionMatrix #Biostatistics
Small Bowel Obstruction Testing Accuracy
#Diagnosis #SBO #Testing #Accuracy #Sensitivity #Specificity #KUB #AbdominalXRay #CT #POCUS #LikelihoodRatio #Comparison
Bowel Obstruction Testing ... Accuracy #Diagnosis ... #SBO #Testing # ... #Specificity #KUB ... LikelihoodRatio #Comparison #Table
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
Cancer Screening Tests ... Stool/blood-based tests ... stool DNA test: ... #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
Cancer Screening Tests ... Stool/blood-based tests ... stool DNA test: ... #comparison #table ... #Testing #Indications
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... sensitivity and specificity ... sensitivity and specificity ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
Rheumatology Workup - Laboratories Studies in Rheumatic Diseases

• Septic arthritis - Gram stain and culture of
- CCP antibody testing ... has higher specificity ... myositis • Thyroid testing ... and C serology testing ... workup #diagnosis #testing
Helicobacter Pylori Testing  Methods - Sensitivity and Specificity

Serology - 85% - 79% - Does not
Helicobacter Pylori Testing ... Sensitivity and Specificity ... Urea breath test ... BEST first line test ... Laboratory #Diagnosis #Accuracy
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Epidemiology and Biostatistics ... Specificity (rule ... FN) Higher specificity ... probability of getting ... error Validity (“accuracy