Blood clot formation in deep veins, usually in the legs
Deep Vein Thrombosis (DVT) is a blood clot that forms in a deep vein, usually in the leg. DVT is serious because it can cause a pulmonary embolism (PE) — a potentially life-threatening complication where the clot breaks loose and travels to the lungs.
Compression ultrasound is the primary diagnostic tool. D-dimer blood test and CT pulmonary angiography are used to rule out pulmonary embolism.
Seek emergency care if you have shortness of breath, chest pain, or coughing up blood — these are signs of pulmonary embolism requiring immediate treatment.