A patient assessment must be performed before the exam. This includes an assessment of the patient’s ability to tolerate the procedure and an evaluation of any contraindications to the procedure. The sonographer or examinershould obtain a complete, pertinent history by interview ofthe patient or their representative and a review of the patient’s medical record, when available.

• A pertinent history includes:
• Proposed surgery for the patient
• Relevant risk factorsincluding previous venous thrombosis
• Lower extremity trauma
• Previous vein harvesting or stripping
• History of venous ulcers
• Current medications and/or therapies
• Results of other relevant diagnostic procedures
• Verify that the requested procedure correlates with the patient’s clinical presentation.

Complete a limited or focused physical exam, including observation and localization of any signs or symptoms of peripheral venous disease:

• Edema
• Varicosities
• Palpable cord
• Discoloration (including feet and digits)
• Ulceration