Apfel Score Calculator for PONV
The Apfel Score estimates the risk of postoperative nausea and vomiting using four independent risk factors. Each “Yes” answer scores 1 point.
Clinical note: This tool is for educational and clinical decision-support use only.
It does not replace clinician judgment. PONV prevention should also consider procedure type,
anesthetic plan, patient comorbidities, contraindications, and local guidelines.
References
- Apfel CC, Läärä E, Koivuranta M, Greim CA, Roewer N. A simplified risk score for predicting postoperative nausea and vomiting. Anesthesiology. 1999;91(3):693–700.
- Pierre S, Benais H, Pouymayou J. Apfel’s simplified score may favourably predict the risk of postoperative nausea and vomiting. Canadian Journal of Anesthesia. 2002;49:237–242.
- Darvall JN, Handscombe M, Maat B, et al. Interpretation of the four risk factors for postoperative nausea and vomiting in the Apfel simplified risk score. Canadian Journal of Anesthesia. 2021.

