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 calculator mode to see positive predictive value

Switch to sensitivity and specificity

Sort findings by Tag

Sort findings by Differential Diagnosis

Jump To

Good Positive and Negative Likelihood Ratios

Good Negative Likelihood Ratio

Good Positive Likelihood Ratio

Acute GI Bleeding: Likelihood Ratios

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 likelihood ratios of findings for Acute GI Bleeding are listed below. See the left navigation bar to change the display.

Good Positive and Negative Likelihood Ratios

Finding +LR-LR Comments, Study
Tagged RBC Scan Edit 18.60.1

In animal models, sensitivity down to .04 - .1 ml/min flow. However, data suggests at least 22% mislocalization rate.

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

World J Gastroenterol. 2010 Aug 21;16(31):3957-63. PMID: 20712058

CT angiography Edit 5.90.1

In animal models, sensitivity down to .3 ml/min

Study: World J Gastroenterol. 2010 Aug 21;16(31):3957-63. PMID: 20712058

Angiography
Duplicate Edit
inf0.4

for upper GI bleeding. sensitivity 63-90%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

Good Negative Likelihood Ratio

Finding +LR-LR Comments, Study
Upper Endoscopy Edit 1.30.3

sensitivity 92-98%, specificity 30-100%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467

Good Positive Likelihood Ratio

Finding +LR-LR Comments, Study
Angiography
Duplicate Edit
inf0.6

for lower GI bleeding. sensitivity 40-86%

Study: Radiographics. 2007 Jul-Aug;27(4):1055-70. PMID: 17620467