11 results
Sensitivity Specificity False-Positive False-Negative Contingency Table / confusion matrix

Sensitivity refers to the test's ability to correctly
Sensitivity Specificity ... False-Positive ... False-Negative Contingency ... Table / confusion ... #Contingency #Table
Cholecystitis Diagnostic Test Characteristics  

Sensitivity, Specificity and Likelihood Ratios of Labs, Physical Exam findings, and
Sensitivity, Specificity ... Cholecystitis #Testing ... Characteristics #Table ... #Sensitivity #Specificity
1,3 Beta-D-Glucan and Galactomannan - Pathogens, and Testing Characteristics
1,3 ß-D-glucan:
 • Most fungi excluding mucor and
Pathogens, and Testing ... and pneumocystis False ... other fungi • False ... Galactomannan #Pathogens #Testing ... #Sensitivity #Specificity
1,3-Beta-D-Glucan and Galactomannan Testing Sensitivity Specificity and False Positives
1,3-Beta-D-Glucan
 • Cell wall component of many fungi
Galactomannan Testing ... Sensitivity Specificity ... and False Positives ... 96% • Higher specificity ... Galactomannan #Fungal #Testing
Fungal Biomarkers: Beta-D-Glucan and Aspergillus Galactomannan
Beta-D-Glucan:
 • Polysaccharide cell wall component of many fungi
 • Pathogens:
Sensitivity & Specificity ... 96% - Higher specificity ... breakthrough IFI in HM • False ... recipients, CGD pts • False ... Frozen ice-pops (in setting
D-dimer
Plasma D-dimer is a product of clot breakdown, released upon degradation of polymerized, crosslinked fibrin. Elevated
can cause a ↓ specificity ... (i.e. more false ... Specificity can ... yrs of age) the specificity ... adjusted d-dimer testing
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
sensitivity and specificity ... sensitivity and specificity ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
Small Bowel Obstruction Testing Accuracy
#Diagnosis #SBO #Testing #Accuracy #Sensitivity #Specificity #KUB #AbdominalXRay #CT #POCUS #LikelihoodRatio #Comparison
Bowel Obstruction Testing ... Diagnosis #SBO #Testing ... #Sensitivity #Specificity ... LikelihoodRatio #Comparison #Table
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Specificity (rule ... FN) Higher specificity ... probability of getting ... null when it’s false ... when it is indeed false
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
sensitivity, 94% specificity ... sensitivity, 87% specificity ... sensitivity, 91% specificity ... Tests #comparison #table ... gastroenterology #CRC #Testing