What is considered a normal venous refill time for the lower extremity?

The normal venous refill time for the lower extremity typically falls within the range of 10 to 20 seconds. A venous refill time is assessed by elevating the leg and then allowing it to return to a dependent position while observing for the time it takes for the veins to refill. This measurement helps evaluate the efficiency of venous return and can indicate the presence of venous insufficiency if the refill time exceeds normal limits.

A refill time of more than 20 seconds is generally considered abnormal, signaling potential issues with venous functioning, and this may suggest impaired venous return or valvular incompetence. Recognizing the normal range is crucial in diagnosing and managing venous disorders effectively.