High (>5%) |
   Emergent major operations |
   Aortic and other major vascular |
   Peripheral vascular |
   Anticipated prolonged surgical procedures associated with large fluid shifts and/or blood loss |
Intermediate (<5%) |
   Carotid endarterectomy |
   Head and neck |
   Intraperitoneal and intrathoracic |
   Orthopedic |
   Prostate |
Low (<1%) |
   Endoscopic procedures |
   Superficial procedure |
   Cataract |
   Breast |