4 results
Upper and Lower Causes of GI Bleed
Upper:
 • Esophagus: Tear (Mallory Weiss, Boerhaave syndrome), Variceal, Esophagitis,
Diverticular, Cancer, Polyps ... Inflammatory: Ischemic colitis ... , Infectious colitis ... , Radiation CMC ... diagnosis #Causes #algorithm
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
specificity for CRC ... visualization: • Colonoscopy ... specificity for polyps ... Screening #Tests #comparison ... #Testing
ACA Colorectal Cancer Screening Guidelines

When to Screen?
When to Stop?
Family History

Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based
specificity for CRC ... visualization: • Colonoscopy ... specificity for polyps ... Indications #Tests #comparison ... #Testing #Indications
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
strategy with minimal testing ... risk • Routine colonoscopy ... things" → fewer polyps ... allergy/ sensitivity testing ... lactoferrin + CRP