19 results
Causes of Secondary Hypertension - Differential Diagnosis and Screening Testing
Common causes: 
 • Renal parenchymal disease
Diagnosis and Screening ... Testing Common ... Renal ultrasound, Tests ... #Screening #Workup ... #table
Who to test for BRCA 1/2?
Female Breast Cancer:
 • ≤ 45-50 years at diagnosis
 • Triple
Who to test for ... cancers in this table ... factors in this table ... criteria for testing ... Breast #Cancer #screening
Commonly Used Diagnostic Tests for Celiac Disease

Tissue transglutaminase (tTG) IgA antibodies
 - Most reliable noninvasive test
Used Diagnostic Tests ... reliable noninvasive test ... and first-level screening ... Celiac #Disease #Testing ... Diagnosis #Workup #Table
Sensitivity is the proportion of truly diseased persons in the screened population who are identified as
diseased by the screening ... that any given case ... implies being able ... scores on the screening ... #Calculation #Table
Performance Characteristics for Colorectal Cancer Screening Tests
Stool/blood-based tests:
 • FIT: 79% sensitivity, 94% specificity for CRC
Performance Characteristics ... Colorectal Cancer Screening ... Cancer #colon #Screening ... #table #management ... 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
Colorectal Cancer Screening ... Family History Performance ... Colorectal Cancer Screening ... #comparison #table ... gastroenterology #CRC #Testing
Hypokalemia - Differential Diagnosis
Poor Intake 
 - Starvation
 - Anorexia
GI Losses 
 - Vomiting / NG
type 4) - Salt wasting ... Low #Potassium #Table ... #Classification ... #Causes
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... Sensitivity (rule out – screening ... disease who test ... then all negative tests ... probability of getting
Hypomagnesemia - Etiologies by Mechanism

Decreased GI Uptake 
 - Poor dietary intake (particularly common in alcoholics)
Familial renal Mg wasting ... Low #Magnesium #Table ... #Classification ... #Causes #Workup
Algorithm regarding the diagnosis and treatment of Hereditary Hemochromatosis HH. 

Step 1: In the patient with
suggested initial screening ... test should be ... elevated, HFE gene testing ... should undergo screening ... If other causes