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Table 1 The American Society of Anesthesiologists (ASA) physical status

From: Goal-directed intraoperative therapy based on autocalibrated arterial pressure waveform analysis reduces hospital stay in high-risk surgical patients: a randomized, controlled trial

ASA physical status

Description

I

A normal healthy patient

II

A patient with mild systemic disease

III

A patient with severe systemic disease

IV

A patient with severe systemic disease that is a constant threat to life

V

A moribund patient who is not expected to survive without the operation