The preoperative evaluation of
A screening questionnaire for all patients
A history of exercise tolerance for all patients
Blood pressure and pulse for all patients
Pregnancy test for women who may be pregnant
Hematocrit for surgery with expected major blood loss
Serum creatinine concentration if hypotension is expected, nephrotoxic drugs will be used, or the patient is above age 50
ECG recommendations as above, unless obtained within the previous month
Chest x-ray for patients over 60 years, or those with suspected cardiac or pulmonary disease, unless one has been performed within the past six months
Pulmonary function tests based upon the American College of Physicians position statement.
All other tests must be done only if the clinical evaluation suggests a likelihood of disease
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