Which of the following best describes the two unilateral leg findings that should trigger referral for suspected DVT in PT screening?

Which of the following best describes the two unilateral leg findings that should trigger referral for suspected DVT in PT screening?

• A. Bilateral leg swelling with warmth.
• B. Calf tenderness without swelling.
• C. Unilateral leg swelling with warmth and redness; calf tenderness.
• D. Generalized leg pain.

Answer: (C)

Recognizing potential DVT in PT screening hinges on noticing a unilateral pattern of signs that localize to one leg. The strongest trigger is a single leg that is swollen and also warm and red, with tenderness felt in the calf. This combination points to an inflammatory and obstructive process in the deep venous system of that leg, which is how a clot typically presents. The calf tenderness adds a local sign consistent with deep venous involvement, since the clot often irritates the venous wall and surrounding tissues in the calf area. If swelling is bilateral, it’s more likely due to a systemic issue rather than a localized clot. If you have warmth and redness without swelling, or just generalized leg pain, the findings are less specific for DVT. Therefore, the unilateral swelling with warmth and redness plus calf tenderness best indicates a possible DVT and should prompt referral for medical evaluation.

Recognizing potential DVT in PT screening hinges on noticing a unilateral pattern of signs that localize to one leg. The strongest trigger is a single leg that is swollen and also warm and red, with tenderness felt in the calf. This combination points to an inflammatory and obstructive process in the deep venous system of that leg, which is how a clot typically presents. The calf tenderness adds a local sign consistent with deep venous involvement, since the clot often irritates the venous wall and surrounding tissues in the calf area.

If swelling is bilateral, it’s more likely due to a systemic issue rather than a localized clot. If you have warmth and redness without swelling, or just generalized leg pain, the findings are less specific for DVT. Therefore, the unilateral swelling with warmth and redness plus calf tenderness best indicates a possible DVT and should prompt referral for medical evaluation.