Which of the following is not a clinical sign indicating a high suspicion for DVT?

• A. Unilateral swelling of the leg
• B. Pain in the calf
• C. Bilateral pitting edema
• D. Warmth to touch of the affected limb

Answer: (C)

Bilateral pitting edema is often associated with systemic conditions such as heart failure or renal issues, rather than localized complications like a deep vein thrombosis (DVT). In the context of DVT, clinical signs typically arise from unilateral changes due to obstruction in venous drainage.

In contrast, unilateral swelling of the leg is a classic sign of DVT, as it indicates fluid accumulation in one leg due to venous obstruction. Pain in the calf, especially if it occurs during plantar flexion (Homan's sign), is another indicator of potential DVT as it reflects irritation of the deep vein structures. Warmth to touch in the affected limb is also a clinical sign because it suggests inflammation and increased blood flow to the area, which can occur due to a thrombus.

Thus, the presence of bilateral pitting edema does not align with the typical presentation of DVT, making it an indicator of systemic conditions rather than a localized issue.