GetTheDiagnosis.org

Welcome, guest.
Login or Sign up to edit.

Add an entry

Search:
 

Tools

Add a finding for this diagnosis

Add prevalence for this diagnosis

Switch to display mode

Switch to likelihood ratios

Sort findings by Accuracy

Sort findings by Tag

Jump To

Untagged

Acute GI Bleeding: Sensitivity and Specificity

Introduction: Acute gastrointestinal bleeding, lumping lower and upper together here. See also Upper GI Bleed.

[Edit Diagnosis] [Merge dx] [Add prevalence]

Tags: Gastrointestinal Problem Tag this Diagnosis.

The sensitivity and specificity of findings for Acute GI Bleeding are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
FindingResult SensitivitySpecificity
[ + ] Angiography + 0 - 40%100%
[ + ] Angiography + 0 - 63%100%
[ + ] CT angiography + 0 - 89%85%
[ + ] Tagged RBC Scan + 0 - 93%95%
[ + ] Upper Endoscopy + 0 - 92%30%