Lower Extremity DVT Knowledge Check

This Knowledge Check for lower extremity deep vein thrombosis (DVT) point-of-care ultrasound (POCUS) gives you an opportunity to test your POCUS knowledge. Each question offers an explanation of the answer, and you'll receive feedback about your final score.

A 45-year-old African American female presented to the Emergency Room with a chief complaint of pain, swelling and redness in her left leg and thigh for the past week after a transatlantic flight. A two-zone compression test was performed on both lower extremities. The image above was obtained in the left saphenofemoral region with compression. An echogenic deep vein thrombus (DVT) was seen. The probe orientation marker was pointing towards the patient’s right side. Match the vessels with the list of blood vessels below. An echogenic clot is seen in B.

A 35-year-old male presented to the Emergency Department with a history of pain, redness and swelling in the left leg for the past 5 days. A 2-zone compression test was performed in both lower extremities by the Emergency Room physician. The image and video above were obtained in the left popliteal region at the level of the popliteal crease. The image shows the popliteal vessels with adequate compression applied at the level of the popliteal crease.

A 35-year-old Asian female presented to the Emergency Department with a chief complaint of pain and swelling in the left leg. The video clip above was obtained while performing a two-zone compression test at the level of the left popliteal crease to look for evidence of DVT. The compression test was performed as per protocol.

A 65-year-old Hispanic male presented to the Emergency Department with pain and swelling in the left leg after a long flight from Australia to Chicago. After a POCUS deep vein thrombosis (DVT) assessment, he was found to have a thrombus in his left popliteal vein. The left popliteal vein is a deep vein. Fortunately, no other clots were discovered on a repeat full DVT assessment study the next day.

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