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Specific Findings

Sensitive Findings

Acute GI Bleeding: Sensitivity and Specificity

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

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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.)
Sensitive and Specific Findings
FindingResult SensitivitySpecificity
[ + ] Tagged RBC Scan + 0 - 93%95%
[ + ] CT angiography + 0 - 89%85%
Specific Findings
FindingResult SensitivitySpecificity
[ + ] Angiography + 0 - 63%100%
[ + ] Angiography + 0 - 40%100%
Sensitive Findings
FindingResult SensitivitySpecificity
[ + ] Upper Endoscopy + 0 - 92%30%