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Small Bowel Obstruction: Sensitivity and Specificity

Introduction: None written.

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Tags: Gastrointestinal Problem Tag this Diagnosis.

The sensitivity and specificity of findings for Small Bowel Obstruction 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
[ + ] CT Enteroclysis + 0 - 89%100%
[ + ] Enteroclysis + 0 - 100%88%
[ + ] Elevated Serum Lactate + 0 - 90%87%
Specific Findings
FindingResult SensitivitySpecificity
[ + ] Abdominal US + 0 - 83%100%
[ + ] Clinical diagnosis + 0 - 75%99%
[ + ] History of Constipation + 0 - 43.8%95%
[ + ] Abdominal Rigidity + 0 - 14.6%94.6%
[ + ] Abdominal CT + 0 - 50%94%
[ + ] Relief of Pain by Vomiting + 0 - 27.1%93.7%
[ + ] Abdominal Tenderness + 0 - 35.4%93.1%
[ + ] Decreased Bowel Sounds + 0 - 22.9%92.8%
[ + ] Abdominal Mass + 0 - 18.8%91.4%
[ + ] Colicky Pain + 0 - 31.2%89.4%
[ + ] Abdominal Distension + 0 - 62.5%89.2%
[ + ] Increased Bowel Sounds + 0 - 39.6%88.6%
Sensitive Findings
FindingResult SensitivitySpecificity
[ + ] Abdominal CT + 0 - 88.1%77%
[ + ] Abdominal CT + 0 - 87.6%75%
Poorly Diagnostic Findings
FindingResult SensitivitySpecificity
[ + ] History of Abdominal Surgery + 0 - 68.8%74%
[ + ] Age + 0 - 60.4%73.1%
[ + ] Elevated D-dimer + 0 - 60%68%
[ + ] Emesis + 0 - 75%65.3%
[ + ] Abdominal X-Ray + 0 - 75%53%
Findings With Unspecified Accuracy
FindingResult SensitivitySpecificity
[ + ] Elevated Serum Amylase No accuracy specified.
[ + ] hearing loss No accuracy specified.
[ + ] Tachycardia No accuracy specified.
[ + ] Leukocytosis No accuracy specified.
[ + ] UGI/SBFT No accuracy specified.

 

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