20 results
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
lesions or SSLs • Colon ... Colorectal #Cancer #colon ... Tests #comparison #table ... #management #gastroenterology ... #CRC #Testing
Diagnostic algorithm for the workup of hypercalcemia. The diagnostic workup for patients presenting with hypercalcemia rests
Diagnostic algorithm ... value of 0.0115, sensitivity ... for correct classification ... Thus, further testing ... #Differential #Algorithm
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
type 4) - Salt wasting ... Differential #Diagnosis #Low ... #Potassium #Table ... #Classification
Diagnosis Adrenal Insufficiency - Algorithm

Step 1) Screening Test: 6-8AM Cortisol Level
 - Early morning cortisol levels
Insufficiency - Algorithm ... specificity for AI (but low ... sensitivity) ... require Cosyntropin testing ... - Low ACTH is
Irritable Bowel Syndrome (IBS) - Diagnosis and Workup Summary
Use a positive diagnostic strategy with minimal testing.
strategy with minimal testing ... /o red flags - Low ... Food allergy/ sensitivity ... testing unless ... Diagnosis #workup #gastroenterology
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
test - High sensitivity ... negative if on low-gluten ... Widely variable sensitivity ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
ACA Colorectal Cancer Screening Guidelines

When to Screen?
When to Stop?
Family History

Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based
lesions or SSLs • Colon ... Colorectal #Cancer #colon ... Tests #comparison #table ... #management #gastroenterology ... #CRC #Testing #
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Differential #Diagnosis #Low ... #Magnesium #Table ... #Classification
Lower GI Bleed - Management Algorithm

Suspected lower GI bleeding (LGIB):
 • Hematochezia 
 • Melena +
Bleed - Management Algorithm ... Melena + right colon ... upper GI bleed) vs Stable ... GIBleed #management #Algorithm ... gastrointestinal #gastroenterology
Physiologic Approach to Hypotonic Hyponatremia
The next time you have a case of hypotonic hyponatremia, give the
normal volume-based algorithm ... can be high or low ... Cerebral Salt Wasting ... Primary polydipsia), Low ... differential #diagnosis #table