1、ASA Physical Status (PS) Classification System*:ASA PS CategoryPreoperative Health StatusComments, Examples*ASA PS classifications from the American Society of AnesthesiologistsASA PS 1Normal healthy patientNo organic, physiologic, or psychiatric disturbance; excludes the very young and very old; he
2、althy with good exercise toleranceASA PS 2Patients with mild systemic diseaseNo functional limitations; has a well-controlled disease of one body system; controlled hypertension or diabetes without systemic effects, cigarette smoking without chronic obstructive pulmonary disease (COPD); mild obesity
3、, pregnancy ASA PS 3Patients with severe systemic diseaseSome functional limitation; has a controlled disease of more than one body system or one major system; no immediate danger of death; controlled congestive heart failure (CHF), stable angina, old heart attack, poorly controlled hypertension, mo
4、rbid obesity, chronic renal failure; bronchospastic disease with intermittent symptomsASA PS 4Patients with severe systemic disease that is a constant threat to life Has at least one severe disease that is poorly controlled or at end stage; possible risk of death; unstable angina, symptomatic COPD,
5、symptomatic CHF, hepatorenal failureASA PS 5Moribund patients who are not expected to survive without the operationNot expected to survive 24 hours without surgery; imminent risk of death; multiorgan failure, sepsis syndrome with hemodynamic instability, hypothermia, poorly controlled coagulopathyASA PS 6A declared brain-dead patient who organs are being removed for donor purposes
