Platelet Tests
Reviewed
Platelet tests include a platelet count (which measures the number of platelets in your blood) and platelet function tests (which check how well your platelets form clots). They are used to monitor or diagnose conditions that cause too much bleeding or clotting, and may be done as part of a routine checkup or before surgery. The source does not provide specific reference ranges or units, so results must be interpreted by a healthcare professional.
Preparation and collection
For a platelet count test, no special preparation is needed. For platelet function tests, you may need to stop taking certain medicines (such as aspirin or ibuprofen) before the test. Do not stop any medicine unless your provider tells you to.
Understanding this test
Use the reference interval and units printed by the laboratory that performed the test. A result outside that interval is not a diagnosis by itself, and a result inside it does not rule out every condition. Your symptoms, history, medicines, timing, and related tests can change what the result means.
- The source does not provide specific reference ranges or units; results are interpreted by the healthcare provider.
- Platelet function tests may not be available at all locations; some specialized tests are only available at certain hospitals and laboratories.
- False positives or false negatives are possible; results must be interpreted in the context of symptoms, medical history, and other tests.
What to do next
Your healthcare provider will interpret your results based on your personal history, symptoms, and other laboratory findings. No action is required for normal results; abnormal results will guide follow-up discussions with your provider.