ASA Physical Status
| I: Healthy |
| II: Mild systemic disease |
| III: Severe systemic disease, not incapacitating |
| IV: Severe systemic disease that is a constant threat to life |
| V: Moribund, not expected to live 24 hrs irrespective of operation |
CARDIAC ANESTHESIA RISK EVALUATION SCORE (CARE)
1. Patient with stable cardiac disease and no other medical problem. A noncomplex surgery is undertaken.
2. Patient with stable cardiac disease and one or more controlled medical problems. A noncomplex surgery is undertaken.
3. Patient with any uncontrolled medical problem or patient in whom a complex surgery is undertaken.
4. Patient with any uncontrolled medical problem and in whom a complex surgery is undertaken.
5. Patient with chronic or advanced cardiac disease for whom cardiac surgery is undertaken as a last hope to save or improve life.
E. Emergency: Surgery as soon as diagnosis is made and operating room is available.