Common indications for the performance of lower extremity venous duplex imaging include, but are not limited to:

• Swelling
• Limb pain
• Tenderness
• Documentation of a source for pulmonary embolism (PE)
• Palpable cord
• Pallor (Phlegmasia alba dolens)
• Cyanosis (Phlegmasia cerulean dolens)
• Status post venousinterventional procedure
• Symptoms of pulmonary embolism
• Shortness of breath with known lower extremity venous thrombosis
• New lower extremity pain while on anticoagulation
• Before terminating anticoagulation therapy