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Alternative NamesEuglobulin clot lysis; Fibrinolysis/euglobulin lysis; ELT
Definition Return to top
Euglobulin lysis time (ELT) is a blood test that looks at how fast clots breakdown in the blood.
How the Test is Performed Return to top
The health care provider uses a needle to take blood from one of your veins. For information on giving a blood sample from a vein, see venipuncture.
The laboratory specialist will run tests on the blood sample to see how fast blood clots dissolve. The dissolving of blood clots is called fibrinolysis.
How to Prepare for the Test Return to top
No special preparation is usually necessary.
How the Test Will Feel Return to top
When the needle is inserted to draw blood, some people feel moderate pain, while others feel only a prick or stinging sensation. Afterward, there may be some throbbing.
Why the Test is Performed Return to top
This is one of the best tests to tell the difference between primary fibrinolysis and disseminated intravascular coagulation.
The test can also be used to monitor patients who are on streptokinase or urokinase therapy for acute MI (heart attack).
Normal Results Return to top
A normal value will range from 90 minutes to 6 hours. Euglobulin clot lysis is normally complete within 2 to 4 hours.
What Abnormal Results Mean Return to top
A longer-than-normal ELT time may be due to:
A shorter-than-normal ELT time may be due to:
The test may also be done to diagnose or rule out:
Risks Return to top
There is very little risk involved with having your blood taken. Veins and arteries vary in size from one patient to another and from one side of the body to the other. Taking blood from some people may be more difficult than from others.
Other risks associated with having blood drawn are slight but may include:
Considerations Return to top
Heavy exercise can cause a shorter-than-normal ELT time.
Increasing age and certain medicines, including corticosteroids, ACTH, streptokinase, and urokinase can cause a longer-than-normal ELT time.
References Return to top
Schafer A. Hemorrhagic disorders: Disseminated intravascular coagulation, liver failure, and vitamin K deficiency. In: Goldman L, Ausiello D, eds. Cecil Medicine. 23rd ed. Philadelphia, Pa: Saunders Elsevier; 2007:chap 181.Update Date: 3/2/2009 Updated by: David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine; and Yi-Bin Chen, MD, Leukemia/Bone Marrow Transplant Program, Massachusetts General Hospital. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.