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 Tag

Sort findings by Differential Diagnosis

Jump To

Specific Findings

Poorly Diagnostic Findings

Bulimia Nervosa: Sensitivity and Specificity

Introduction: Binging plus/minus purging.

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

Tags: Psychiatric Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
Young Adult Females 1% Int J Eat Disord. 2001 Nov;30(3):279-87. PMID: 11746287
500 10%
More, Edit...

The sensitivity and specificity of findings for Bulimia Nervosa 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.)
Specific Findings
FindingResult SensitivitySpecificity
[ + ] Hypokalemia + 0 - 19%100%
[ + ] Abnormal Serum Chloride + 0 - 9%100%
[ + ] Urine Sodium to Chloride Ratio + 0 - 52%95%
[ + ] Fractional Excretion of Sodium + 0 - 37%95%
Poorly Diagnostic Findings
FindingResult SensitivitySpecificity
[ + ] Abnormal Serum Bicarbonate + 0 - 25%84%
[ + ] Elevated Serum Amylase Sensitivity = 45%