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Performance Scales

Last Updated: September 27, 2018

ASA Physical Status Classification System
System for pre-surgical function status assessment
ASA Physical Status Description
1 Normal healthy patient
2 Patient with mild systemic disease
3 Patient with severe systemic disease
4 Patient with severe systemic disease posing constant threat to life
5 Moribund patient not expected to survive without operation
6 Declared brain-dead patient whose organs are being removed for donor purposes
Karnofsky Performance Scale
Classification by functional status to compare therapies and establish prognosis
Score Description Capability
100 Normal no complaints, no evidence of disease Able to carry on normal activity and work with no s...