It was a blood clot.

There's a big clot in the middle of the artery.

If the plack bursts, it causes a blood clot that blocks the artery

Before removing the heart, the pulmonary artery is opened in order to search for a blood clot.

Blood clotting in the veins of the legs is estimated to occur in 6 to 25 of people.

And so you could imagine that maybe there is a big blood clot that forms in some part of the brain.

Coagulation factors The remainder of the biochemical factors in the process of coagulation were largely discovered in the 20th century.

Diagnosis is made retrospectively by finding an organized blood clot or a depressed area on a delivered placenta.

Factor V (pronounced factor five) is a protein of the coagulation system, rarely referred to as proaccelerin or labile factor.

They detected dried blood cells and possibly fibrin in a state of degradation from maturity, suggesting an established blood clot of more than a few days' age.

Having determined that the President had been shot in the head, and not stabbed in the shoulder as originally thought, he made an attempt to clear the blood clot, after which the President began to breathe more naturally.

Given the high risk of thrombosis in PNH, preventative treatment with warfarin decreases the risk of thrombosis in those with a large clone (50 of white blood cells type III).

In the United Kingdom, for example, near patient testing is used both by patients at home, and by some anticoagulation clinics (often hospital based) as a fast and convenient alternative to the lab method.

The following year, crude precursors of the blood thinning medication heparin were contaminated, causing hundreds of allergic reactions and 19 deaths in the United States, and at least 80 serious adverse health events in Germany.