Contraindications for lower extremity venous duplex imaging may include the following:

• Obesity
• Recent surgery in the region of exam, the presence of casts, surgical staples/dressings, open wounds, hematoma
• Patients with severe edema/swelling
• Involuntary movement or inability to remain still during examination
• Patients with limited mobility
• Studies done at bedside may be limited due to patient access and room dimensions.