Class Description Examples
1 A normal healthy patient
2 A patient with mild systemic disease that results in no functional limitations Hypertension, diabetes mellitus, chronic bronchitis, advanced age
3 A patient with severe systemic disease that results in functional limitation Poorly controlled HTN, DM with vasc. complications, angina, prior MI, pulmonary disease that limits activity
4 A patient with severe systemic disease that is a constant threat to life CHF, unstable angina, advanced pulmonary, renal, or hepatic dysfunction
5 A moribund patient who is not expected to survive without an operation Ruptured AAA, pulmonary embolism, head injury with increased intracranial pressure
6 A declared brain dead patient whose organs are being removed for donor purposes