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Surgery-Perioperative Calculators

RCRI, ASA, Caprini, Apfel, POSSUM, and ARISCAT scores

9 calculators
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Apfel Simplified Risk Score for PONV

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

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ARISCAT Score for Postoperative Pulmonary Complications

Predicts risk of postoperative pulmonary complications (PPCs) based on patient and procedure-related factors.

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ASA Physical Status Classification

Standardized classification system for assessing the preoperative physical fitness of patients undergoing anesthesia.

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Caprini Score for VTE Risk in Surgery

Risk assessment tool for venous thromboembolism (VTE) in surgical patients to guide prophylaxis decisions.

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Gupta Cardiac Arrest Risk After Surgery (Gupta MICA)

Predicts risk of myocardial infarction or cardiac arrest (MICA) within 30 days after noncardiac surgery based on NSQIP data.

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Gupta Respiratory Failure Risk After Surgery (Gupta PRF)

Predicts risk of postoperative respiratory failure requiring mechanical ventilation within 30 days after noncardiac surgery.

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Padua Score for Medical VTE Prophylaxis

Assesses venous thromboembolism (VTE) risk in hospitalized medical patients to guide pharmacologic prophylaxis decisions.

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POSSUM for Morbidity/Mortality After Surgery

Physiological and Operative Severity Score for the enUmeration of Mortality and morbidity (POSSUM) predicts postoperative mortality and morbidity.

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Revised Cardiac Risk Index (RCRI) for Surgery

Predicts perioperative major adverse cardiac events (MACE) in adults undergoing noncardiac surgery.

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⚠️ Medical Disclaimer: All calculators on this site are for educational and clinical decision-support purposes only. They are not a substitute for professional medical advice, diagnosis, or treatment. Always verify calculations independently and exercise clinical judgment.