The optimal position and preparation for performing an upper extremity arterial segmental physiologic evaluation includes the following:

• The extremities positioned at approximately the same level as the heart. The exam is typically performed with the patient in supine position. Position can be altered when performing supplemental procedures.
• The examiner should be as close to the examined extremity as possible to allow for proper ergonomics.
• Performed in a warm room to reduce vasoconstriction.