In suspected deep vein thrombosis, which action is contraindicated because it could dislodge the clot?

In suspected deep vein thrombosis, which action is contraindicated because it could dislodge the clot?

• A. Ambulate the client around the room
• B. Assess Homans' sign
• C. Apply intermittent warm, moist soaks to the leg
• D. Elevate the affected limb

Answer: (B)

In suspected deep vein thrombosis, any maneuver that could move or loosen a clot is risky. Dorsiflexing the foot to test for Homans' sign directly involves manipulating the ankle and calf with the potential to shear or dislodge a thrombus. If the clot breaks free, it can travel to the lungs and cause a pulmonary embolism, which is a life-threatening emergency. For this reason, this maneuver is contraindicated.

The other actions listed aren’t associated with dislodging a clot in the same way. Elevating the limb and gentle, non-invasive care can help reduce swelling and discomfort, and ambulation is typically addressed based on medical guidance and symptoms. Heat or warm compresses are not the focus for preventing embolization in this scenario and are not used as a diagnostic maneuver. The essential idea is to avoid any leg manipulation that could risk releasing the clot.