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Table 1 ASA-Criteria

From: Acute cholecystitis – early laparoskopic surgery versus antibiotic therapy and delayed elective cholecystectomy: ACDC-study

ASA Physical Status (PS) Classification System from the American Society of Anesthesiologists
ASA PS Category Preoperative Health Status
ASA PS 1 Normal healthy patient
ASA PS 2 Patients with mild systemic disease
ASA PS 3 Patients with severe systemic disease
ASA PS 4 Patients with severe systemic disease that is a constant threat to life
ASA PS 5 Moribund patients who are not expected to survive without the operation
ASA PS 6 A declared brain-dead patient who organs are being removed for donor purposes
  1. American Society of Anesthesiologists (ASA) Physical Status (PS) Classification System. Categories to classify the preoperative health status of patients.