Answer:
Deep vein thrombosis, or DVT, occurs when a blood clot forms in the veins. If the blood clot is not properly dissolved it can break off, travel through your bloodstream, and become stuck in the arteries of the lungs. A blood clot in the arteries of the lungs is called a pulmonary embolism and can be fatal if treatment is not administered quickly.
This procedure is used to dissolve a large clot.
Step-by-step explanation: