| ASA PS Classification |
Definition |
Examples, including, but not limited to: |
| ASA I |
A normal healthy patient |
Healthy, non-smoking, no or minimal alcohol use |
| ASA II |
A patient with mild systemic disease |
Mild diseases only without substantive functional limitations. Examples include (but not limited to): current smoker, social alcohol drinker, pregnancy, obesity (30 < BMI < 40), well-controlled DM/HTN, mild lung disease |
| ASA III |
A patient with severe systemic disease |
Substantive functional limitations; One or more moderate to severe diseases. Examples include (but not limited to): poorly controlled DM or HTN, COPD, morbid obesity (BMI ā„40), active hepatitis, alcohol dependence or abuse, implanted pacemaker, moderate reduction of ejection fraction, ESRD undergoing regularly scheduled dialysis, premature infant PCA < 60 weeks, history (>3 months) of MI, CVA, TIA, or CAD/stents. |
| ASA IV |
A patient with severe systemic disease that is a constant threat to life |
Examples include (but not limited to): recent ( < 3 months) MI, CVA, TIA, or CAD/stents, ongoing cardiac ischemia or severe valve dysfunction, severe reduction of ejection fraction, sepsis, DIC, ARD or ESRD not undergoing regularly scheduled dialysis |
| ASA V |
A moribund patient who is not expected to survive without the operation |
Examples include (but not limited to): ruptured abdominal/thoracic aneurysm, massive trauma, intracranial bleed with mass effect, ischemic bowel in the face of significant cardiac pathology or multiple organ/system dysfunction |
| ASA VI |
A declared brain-dead patient whose organs are being removed for donor purposes |
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