When DVT ultrasound is considered
DVT ultrasound may be requested for one-sided leg swelling, calf pain, warmth, tenderness, symptoms after long travel, or follow-up after a previous clot. The scan is non-invasive and checks vein compressibility and blood flow.
When emergency care comes first
Chest pain, shortness of breath, fainting, coughing blood, stroke-like symptoms, or severe illness should be treated as emergency symptoms. The website cannot replace emergency care or a treating doctor's direct assessment.