clot (redirected from clot formation)

clot (klot)

1. coagulum; a semisolid mass, as of blood or lymph.

2. coagulate.

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agony clot  a type of antemortem clot formed in the process of dying.

antemortem clot  one formed in the heart or in a large vessel before death but found after death.

blood clot  a coagulum in the bloodstream formed of an aggregation of blood factors, primarily platelets, and fibrin with entrapment of cellular elements.

chicken fat clot  a yellow-appearing blood clot, due to settling out of erythrocytes before clotting.

currant jelly clot  a reddish clot, due to the presence of erythrocytes enmeshed in it.

laminated clot  a blood clot formed by successive deposits, giving it a layered appearance.

passive clot  one formed in the sac of an aneurysm through which the blood has stopped circulating.

plastic clot  one formed from the intima of an artery at the point of ligation, forming a permanent obstruction of the artery.

postmortem clot  one formed in the heart or in a large blood vessel after death.

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clot (klt)

n.

A soft, nonrigid, insoluble mass formed when blood or lymph gels.

v.

To coagulate.

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Clot

A soft, semi-solid mass that forms when blood gels.

Mentioned in: Anticoagulant and Antiplatelet Drugs, Immunologic Therapies

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clot.

See blood clot.

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clot,

n coagulated blood, plasma, or fibrin.

clot, blood,

n a coagulum formed of blood of a semisolidified nature. See also clotting factors.

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clot

1. a semisolidified mass, as of blood or lymph.

2. to form such a mass.

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dilute whole blood clot retraction test

an indirect measure of fibrinolytic activity. Whole blood is diluted with saline, chilled, then warmed. The time for clot retraction, and later clot lysis, is measured.

clot formation

a complex interaction, part of the phenomenon of blood clotting. The process is irreversible but the clot may be dissolved naturally.

clot lysis

the time required for a clot to lyse at 98.6°F (37°C) is a reflection of the plasmin content of the blood. Clot retraction and fibrinogen content of the blood sample are also influential.

clot retraction

the drawing away of a blood clot from a vessel wall, a function of thrombasthenin, released by blood platelets.

clot retraction test

a test for platelet numbers and function. Clotted whole blood should retract away from the sides of a glass tube in 1 to 2 hours.

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clot

Vox populi noun An intravascular coagulum. See Blood clot, Hard clot, Sentinel clot verbTo coagulate.

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Patient discussion about clot formation.

Q. How can I prevent blood clots? I am 45 years old and am supposed to go on a business trip overseas. The flight itself is 12 hours long and then I have to continue traveling by bus. Could this cause me to have blood clots? If so, how can I prevent it?

A. Sitting or laying in one position for a long period of time can increase the risk of developing DVT- deep vein thrombosis. Here are some methods to prevent it:
Exercise your calf and foot muscles regularly:
Every half hour or so, bend and straighten your legs, feet and toes when you are seated.
Press the balls of your feet down hard against the floor or foot-rest every so often. This helps to increase the blood flow in your legs
Take a walk up and down the aisle every hour or so, when the aircraft crew say it is safe to do so.
If you are allowed, get off the plane and walk about if the plane stops for refueling.
Consider buying a leg exerciser for the journey.
Drink plenty of water (to avoid dehydration).
Do not drink too much alcohol. (Alcohol can cause dehydration and immobility.)
Do not take sleeping tablets, which cause immobility.
Consider wearing compression stockings.
Some people at high risk may also be advised to take anticoagulant medication by their Dr.

Q. very dark blood clots @ first sight of period? At first sight of period, instead of normal rosy spotting it's brownish spotting followed by small clots.

A. Hi Bonbolong.. I just need to ask you a few questions before I feel I can answer you to the best of my ability..Are you now, or have you ever been on birth control pills? How old are you? Have your periods always been like this? When I was young I had so many problems with my periods I wanted a hysterecomy. Of course at 14 years ols, my doctor wouldnt listen..LOL.. I would call your doctor just so he/she can assure you that you are ok..You said your blood was a browish color, I wouldnt worry about that, it is when the blood is black that means something is going on. DOnt worry abou t the clots, that is normal. Like I said, I had many problems when I was young, in fact my GYN had me on birth control at 14 years old. I hope I helped a little, but please get in touch with your doctor, it is amazing how much better you will feel when you find out you are fine

Shirley

Q. What causes blood clots? My father had a heart attack which was caused by a blood clot. Am I at risk for developing blood clots too? How do I prevent it from happening?

A. I found a website that checks your risks for inheriting your family's illness, including blood clots. They have a test you can do which is called "Free Risk Assessment for Thrombophilia":
http://www.dnadirect.com/patients/tests/blood_clotting/more_about/GH_Thr_Risk.jsp