Anesthesiology
Guidelines for Preoperative Laboratory Testing
| Blood Test | Indications |
|---|---|
| CBC | Procedure with potential for significant blood loss; history of anemia, chemotherapy, renal failure, or abnormal bleeding tendency |
| Coagulation tests | Anticoagulant use or abnormal bleeding tendency |
| Electrolytes, glucose, BUN, creatinine | Diabetes or renal disease; use of diuretic, digoxin, or steroids; pacemaker, ICD, or CRT device |
| Liver function | Liver disease or alcohol abuse |
| Thyroid function | Active thyroid disease; clinical signs of hyper- or hypothyroidism |
Additional preoperative blood or urine testing is at the discretion of the admitting surgeon, the referring physician, or the anesthesiologist. Urine pregnancy testing is automatically ordered on admission for female patients of potential child-bearing age. Any patient who is qualified to sign her own consent may elect to waive the pregnancy test.