the ASA Physical Status classes:
Class 1. A healthy patient (no physiologic, physical, or psychologic abnormalities).
Class 2. A patient with mild systemic disease without limitation of daily activities.
Class 3. A patient with severe systemic disease that limits activity but is not incapacitating.
Class 4. A patient with incapacitating systemic disease that is a constant threat to life.
Class 5. A moribund patient not expected to survive 24 hours with or without the operation.
Class 6. A brain-dead patient whose organs are being removed for donor purposes.
----------以上是麻省手册7版上分级