Partial Thromboplastin Time (PTT)

Also known:

Activated Partial Thromboplastin Time, PTT, aPTT

systematic name:

Partial Thromboplastin Time


What sample is required?

The determination is made from a venous blood sample.

Is some kind of prior preparation necessary?

For this test you do not need any special preparation.

Why do the analysis?

As part of an investigation of a bleeding episode or a thrombotic (clot formation) event; to monitor anticoagulant therapy with standard (unfractionated) heparin; as a screening test before surgery or other invasive procedure.

When to do the analysis?

When you suffer from bleeding or clot formation in an inexplicable way; before repeat abortions; when you are under anticoagulant treatment with standard (unfractionated) heparin; sometimes, as part of a preoperative study.

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