Heffner Criteria (Pleural Exudate, No Serum Sample)
Heffner Criteria (Pleural Exudate, No Serum Sample) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
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What this is
Heffner Criteria (Pleural Exudate, No Serum Sample) is one of 230 deterministic tools in Sophie Well's Clinical Scoring & Risk group. Heffner Criteria (Pleural Exudate, No Serum Sample) - a deterministic tool in Sophie Well's Clinical Scoring & Risk group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
Heffner JE, Brown LK, Barbieri CA. Diagnostic value of tests that discriminate between exudative and transudative pleural effusions. Chest. 1997;111(4):970-980, with the abbreviated cut points reported by Heffner JE and colleagues (Chest 2002). Read the source ↗
Worked example: Exudate
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