11 results
Acute Mesenteric Ischemia - Performance of 
Laboratory Tests (Sensitivity, Specificity) 
- WBC, Lactate, D-dimer, Urine I-FABP

#Mesenteric
Mesenteric Ischemia - Performance ... of Laboratory Tests ... (Sensitivity, Specificity ... Ischemia #AMI #Testing ... #Specificity
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
Performance Characteristics ... Cancer Screening Tests ... , 94% specificity ... , 87% specificity ... 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
Family History Performance ... , 94% specificity ... , 87% specificity ... , 91% specificity ... gastroenterology #CRC #Testing
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
Sensitivity is the ... Sensitivity indicates ... Specificity is the ... it has a narrow focus ... #Specificity #PositivePredictiveValue
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
Diagnostic algorithm ... hypercalcemia rests ... value of 0.0115, sensitivity ... ) was 0.80 and specificity ... Thus, further testing
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... have almost 100% specificity ... for AI (but low sensitivity ... require Cosyntropin testing ... Insufficiency #Algorithm
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... Sensitivity (rule ... Specificity (rule ... FN) Higher specificity ... PPV Higher sensitivity
Causes of Primary Amenorrhea - Differential Diagnosis Algorithm
No onset of menarche by age 16 with secondary
Causes of Primary ... Differential Diagnosis Algorithm ... • Vanishing Testes ... Functional (e.g. eating ... #Causes #OBGyn
Celiac Disease - Diagnosis Algorithm
IgA TTG has high sensitivity and specificity of ~ 98% and is
Disease - Diagnosis Algorithm ... IgA TTG has high sensitivity ... and specificity ... pts need further testing ... -A negative test
Small Bowel Obstruction on POCUS

This 28yo female with history of Crohn's disease presents with abdominal pain,
Obstruction on POCUS ... abdominal pain, nausea ... which she reports getting ... diagnosed with high sensitivity ... & specificity using