What is the RN's most urgent concern for a patient with calf edema, pain, and warmth?

In a patient presenting with calf edema, pain, and warmth, the most urgent concern is deep vein thrombosis (DVT). This condition is characterized by the formation of a blood clot in a deep vein, most commonly in the legs, and poses a significant risk because it can lead to serious complications, such as a pulmonary embolism if the clot dislodges and travels to the lungs.

The key signs of DVT—swelling, tenderness, and warmth—indicate a possible thrombotic process that needs immediate evaluation and management. Rapid identification and treatment are critical to preventing complications, making this condition a high-priority concern for the registered nurse.

While cellulitis is also associated with warmth and edema, it typically presents with additional signs of infection, such as redness and systemic symptoms like fever. Osteomyelitis involves bone infection and would not primarily present with only calf edema and tenderness related to a thrombotic event. Lymphedema results from a blockage in the lymphatic system and tends to have a different presentation, often without warmth and acute pain associated with an inflammatory or thrombotic event.

Given the potential for life-threatening complications associated with DVT, it is essential for the nurse to prioritize assessment and interventions for this