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Deep vein thrombosis (DVT) occurs when a blood clot (thrombus) forms in one or more of the deep veins in the body, usually in the legs. Deep vein thrombosis can cause leg pain or swelling. Sometimes there are no noticeable symptoms.
Thrombophlebitis (throm-boe-fluh-BY-tis) is an inflammatory process that causes a blood clot to form and block one or more veins, usually in the legs. The affected vein might be near the surface of the skin (superficial thrombophlebitis) or deep within a muscle (deep vein thrombosis, or DVT).
Tests used to diagnose or rule out DVT include: D-dimer blood test. D dimer is a type of protein produced by blood clots. Almost all people with severe DVT have increased blood levels of D dimer. This test often can help rule out pulmonary embolism (PE). Duplex ultrasound.
Overview. A pulmonary embolism (PE) occurs when a blood clot gets stuck in an artery in the lung, blocking blood flow to part of the lung. Blood clots most often start in the legs and travel up through the right side of the heart and into the lungs. This is called deep vein thrombosis (DVT).
Sudden weakness or numbness of the face, arm or leg. Sudden difficulty speaking or understanding speech. Consult your health care provider if you develop these symptoms in an area on an arm or leg: Swelling. Change in skin color, such as an area on the leg that looks unusually red or purple. Warmth. Pain.
These blood clots help the body heal. But some blood clots form inside the veins without a good reason. They don't dissolve naturally. These clots may require medical attention, especially if they are in the legs, lungs or brain. A number of conditions can cause this type of blood clot.
Blood clots are made when substances in the blood thicken and form a semisolid mass. This process may be triggered by an injury. Sometimes it occurs inside blood vessels that don't have an obvious injury.
You might have an imaging test, like an ultrasound, to check your leg for superficial or deep vein thrombosis. A blood test can show if you have a high level of a substance that dissolves clots. This test can also rule out DVT and show if you're at risk of having thrombophlebitis repeatedly.
Most often, PE starts with a blood clot in the deep vein system of one of your legs, called deep vein thrombosis (DVT). The leg clot might be silent or can cause swelling or muscle pain in one leg. A DVT can travel up to your lung where it becomes known as PE.
Peripheral artery disease (PAD) may not cause symptoms, or symptoms may be mild. PAD symptoms include: Leg pain when walking. Muscle pain or cramping in the arms or legs, often in the calf. Muscle pain in the arms or legs that begins with exercise and ends with rest.