Activated Partial Thromboplastin Test (PTT)

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This is a screening test that helps check a person’s ability to properly form blood clots.

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Blood.

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None however, a high-fat meal before the blood draw may affect the test and should be avoided.

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[vc_column_text]5 Hours.[/vc_column_text]

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The partial thromboplastin time (PTT; also known as activated partial thromboplastin time (aPTT)) is a screening test that helps evaluate a person’s ability to appropriately form blood clots. It measures the number of seconds it takes for a clot to form in a sample of blood after substances (reagents) are added. A prolonged PTT means that the blood is taking too long to form a clot, this may be caused by conditions such as liver disease, vitamin K deficiency, or a coagulation factor deficiency (e.g., factor VII deficiency).

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