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Clotting is what prevents excessive bleeding when you cut yourself. But the blood moving through your vessels shouldn’t clot. If such clots form, they can travel through your bloodstream to your heart, lungs, or brain. This can cause a heart attack, stroke, or even death.
Coagulation tests measure your blood’s ability to clot, and how long it takes to clot. Testing can help your doctor assess your risk of excessive bleeding or developing clots (thrombosis) somewhere in your blood vessels.
Coagulation tests are similar to most blood tests. Side effects and risks are minimal. A medical professional will take a blood sample and send it to a laboratory for testing and analysis.