Surgery and anesthesia medical calculators

All 4 Surgery and anesthesia medical calculators on DocMath, A–Z. All specialties

Apfel simplified PONV risk scorePredicts the risk of postoperative nausea and vomiting (PONV) in adults having general anesthesia, from four risk factors; risk band per the Fifth Consensus PONV guideline (2025).
ARISCAT score (postoperative pulmonary complications)Predicts the risk of in-hospital postoperative pulmonary complications after surgery under general, neuraxial or regional anesthesia (Canet 2010).
ASA physical status classificationReference classifier for the American Society of Anesthesiologists physical status (ASA PS I–VI, with "E" for emergency surgery), with the ASA definitions.
Burn resuscitation fluid (Parkland / ABA 2 mL/kg/%TBSA)Estimated crystalloid volume for the first 24 hours after a major burn in adults (≥20% TBSA), and the initial hourly rate; ABA 2024 guideline starting rate (2 mL/kg/%TBSA) or Parkland (4 mL/kg/%TBSA).