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Blood Clots
The clotting mechanism is one of the most important and
complex of physiologic systems. Blood must flow freely
through the blood vessels. But if a blood vessel is
traumatized, the blood must clot to prevent further
blood loss from damaged tissues. A blood clot becomes
dangerous when it blocks an artery or vein and stops
blood flow. The blood clot is then called a thrombus. A
thrombus that breaks free and travels through the
bloodstream it is called an embolus.
If an internal blood clot breaks loose and travels through
the circulatory system, it may become lodged in an
important blood vessel and block the flow of blood to
vital organs. The result may be a heart attack, stroke,
disabling injury in the limbs or pulmonary embolism.
A thrombus in the leg or pelvic vein is called a deep vein
thrombosis (DVT).
Blood Clots Symptoms
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