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

• The exam is typically performed with the patient in supine position, head slightly elevated, and arm externally rotated. The arm can be placed on a pillow for patient comfort.
• Examiner should be as close to the examined extremity as possible to allow for proper ergonomics.
• The non-dominant arm is the first choice, unless testing reveals abnormalities.