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ArhamDiagnostics
Haematology

Platelet Aggregation Studies

Tests whether platelets clump properly, in unexplained bleeding or bruising.

Also known as: platelet function, aggregometry

This one is done at the centre — it cannot be collected at home. Find your nearest branch.

Turnaround
7–10 working days
Preparation
Avoid aspirin and anti-inflammatories for ten days beforehand — they invalidate the test.
Sample
Blood sample

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About this test

The platelet count can be entirely normal while the platelets themselves do not work. Aggregation studies expose the sample to a series of agonists and measure the response, identifying inherited platelet function disorders and von Willebrand disease. The sample must be tested within hours, so it is drawn at the centre.

What it measures

  • Response to ADP, collagen, adrenaline and ristocetin

A note on results. A single test is one part of a clinical picture, not a diagnosis. Discuss your report with a qualified doctor, who will read it alongside your history and examination.

Related to

  • General health

Often ordered with this