Apfel Simplified Risk Score for PONV

Predicts risk of postoperative nausea and vomiting (PONV) using four independent risk factors.

Female gender Female gender is the strongest single predictor for PONV.

Non-smoker Nonsmoking status increases PONV risk.

History of PONV or motion sickness Previous PONV or motion sickness in history.

Planned postoperative opioids Use of postoperative opioids increases PONV risk.

Enter values and click Calculate to see results

This calculator is a clinical decision support tool and does not replace professional judgment.
Consider individual patient factors when interpreting results.

A simplified risk score for predicting postoperative nausea and vomiting. Anesthesiology (1999). Link
Risk Assessment of PONV in the IV PCA Environment. Korean J Pain (2013). Link