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What does activated PTT mean in a coagulation study?
An elevated aPTT means that it took longer than normal for the blood clot to form. This could be due to a number of factors, including:
* Vitamin K deficiency
* Liver disease
* Kidney disease
* Disseminated intravascular coagulation (DIC)
* Antiphospholipid antibody syndrome
* Pregnancy
* Certain medications, such as heparin, warfarin, and aspirin
If your aPTT is elevated, your doctor will likely order additional tests to determine the cause.