At a Glance
Why Get Tested?
To help determine the cause of or potential for excessive bleeding and/or to diagnose a platelet function disorder; to monitor and evaluate platelet function; to monitor the presence and effectiveness of anti-platelet medications
When to Get Tested?
When you bruise easily or experience excessive or prolonged bleeding; when you are taking medications that can alter platelet function; prior to or during certain surgeries
A blood sample drawn from a vein in your arm
Test Preparation Needed?
You may be instructed to refrain from taking drugs that can affect the results of these tests, such as aspirin, non-steroidal anti-inflammatory drugs (NSAIDs), or any over-the-counter medications that contain drugs such as these. The most common NSAIDs include ibuprofen, naproxen and COX-2 inhibitors. However, do not stop taking your medications unless instructed to do so by your health care provider.