Ace the Adult Health II Challenge 2026 – Ignite Your Expertise with Exam 1 Prep!

Unilateral leg swelling with calf pain is the sign that most points to a deep vein thrombosis. When a clot forms in a deep vein, it blocks venous outflow from that leg, causing swelling, warmth, and tenderness localized to the affected limb. The unilateral pattern fits a local vascular issue like DVT much better than bilateral swelling, which usually indicates systemic problems such as heart failure, liver or kidney disease, or chronic venous insufficiency. Shortness of breath at rest suggests a lung problem, such as a pulmonary embolism, which can occur if a DVT travels to the lungs but isn’t by itself the finding that directly indicates a DVT. Headache and dizziness aren’t typical clues for DVT. So the finding that best signals DVT is one-sided leg swelling with calf tenderness, reflecting a localized venous occlusion. If suspected, the standard next step is compression venous ultrasound to confirm, with D-dimer used to help rule out DVT in patients with low probability.