21 results
Persistent UC Symptoms Despite 5-ASA Therapies
 • Assess for Drug Adherence
 • Disease Activity Assessment (bloody
non-bloody diarrhea) • FCP ... • Observation (FCP ... JAK Inhibitor Algorithm ... Treatment #Management #Algorithm
Important Biostatistics and Epidemiology Equations

Sensitivity = TP / (TP + FN) = true positives / disease
Specificity = TN / (FP ... Value = TP / (TP + FP ... Epidemiology #Equations #calculations
Specificity Calculation - Probability that a test correctly identifies those without the disease (true negative rate)

Specificity
Specificity Calculation ... Specificity = TN / (FP ... Epidemiology #Equations #calculations
Positive Predictive Value Calculation - Probability that someone with a positive test actually has the disease

Positive
Predictive Value Calculation ... Value = TP / (TP + FP ... Epidemiology #Equations #calculations
Causes of Small Bowel Bleeding - Differential Diagnosis
Common Causes:
 • Under age 40 years: Inflammatory Bowel
Causes of Small ... Diagnosis Common Causes ... NSAID ulcers Rare Causes ... Inherited syndromes (FAP ... Differential #Diagnosis #Causes
Causes of Extravascular and Intravascular Hemolysis - Differential Diagnosis Algorithm
Extravascular - Spleen and RES-mediated hemolysis
 -
Causes of Extravascular ... Differential Diagnosis Algorithm ... Hemolysis within circulation ... Differential #Diagnosis #Algorithm ... #Causes #Hematology
Relapsing Acute Severe Ulcerative Colitis - Management Algorithm
Loss of Response:
 • (Re)consult Colorectal Surgery
 • Assess
Colitis - Management Algorithm ... Activity: Flex Sig, FCP ... PJP Prophylaxis Algorithm ... UC #Management #Algorithm
USMLE Epidemiology and Biostatistics Summary
Meta-Analysis: pools data from several studies (greater power), limited by quality/bias of
Proves cause-effect ... negative: TN / (TN + FP ... ) = 1 - FP. ... positives: TP / (TP + FP ... Biostatistics #formulas #calculations
Disseminated Intravascular Coagulation (DIC) Overview

Increased Clotting and Consumption of Clotting Factors

Findings:
 • Bleeding
 • Recent history
Treat primary cause ... abnormalities - PLT, FFP ... Coagulation #diagnosis #causes
Emergency Management of Hyperkalemia in Adults
Assess Patient - Airway Breathing Circulation Disability Exposure (ABCDE) Approach
 •
Airway Breathing Circulation ... mmol/L - Consider cause ... Prevention - Consider cause ... Hyperkalemia #management #algorithm