Loading...
Printed on 4/19/2026
For informational purposes only. This is not medical advice.
The Caprini score is a commonly used risk assessment model for postoperative venous thromboembolism (VTE). It assigns weighted points to patient risk factors and stratifies risk to inform thromboprophylaxis planning.
Formula: Caprini score = age points + (1 x count of 1-point factors) + (2 x count of 2-point factors) + (3 x count of 3-point factors) + (5 x count of 5-point factors).
Higher total scores indicate greater postoperative VTE risk and stronger indication for pharmacologic or extended prophylaxis depending on bleeding risk.
Use Caprini scoring in perioperative planning, especially for inpatient and major surgery pathways where VTE prevention protocols are used.
Risk-factor definitions vary across versions and institutions. Use this calculator with local protocols and formal guideline recommendations.
For related assessments, see Wells Score (DVT), RCRI Score and ASA Class.
Disclaimer: This tool is for educational and informational purposes only. It is not a substitute for professional medical advice, diagnosis, or treatment. Always consult a qualified healthcare provider with questions about your health.
Calculate Wells Score for DVT to estimate pretest probability and guide D-dimer testing, compression ultrasound, and next-step clot workup.
SurgeryEstimate perioperative major cardiac event risk for non-cardiac surgery using the 6-factor Lee RCRI model.
SurgeryClassify preoperative physical status using the ASA I–VI system for anesthetic risk stratification. ASA III+ indicates significant systemic disease requiring special perioperative planning and precautions.
HematologyCalculate the 4T score for heparin-induced thrombocytopenia (HIT) pretest probability. Score ≤3: >99% NPV for HIT. Intermediate/High (≥4): stop heparin, start alternative anticoagulation.