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What is A 65 year old man is scheduled for emergency laparoscopic appendectomy. He is a chronic smoker with history of severe COPD, diabetic and hypertensive, on insulin, metformin and antihypertensive medications, not on regular follow up. He also complains of dyspnea on walking more than a few meters. This patient would be assigned and explain in detail?
Elderly male patient –poorly controlled diabetic and hypertensive, known smoker with COPD. His co-morbidities are constant threat to life.  And since emergency appendectomy is done, it falls under ASA 4E.