Additional Information

Results for the PFS will be reported as normal or abnormal, along with interpretation, the platelet count and hematocrit.

The most common cause of platelet dysfunction is medication.

 If results are abnormal, suspect VonWillebrands Disease, a platelet disorder or drug-induced inhibition of platelet aggregation. Newborns can have decreased aggregation compared to adults.

Test Scheduling Policy:

It is mandatory that a PFS be scheduled ahead of time. Personnel, reagents, and QC can be prepared in advance of the patient draw to expedite the procedure. Call 607-547-3725

Testing is offered Monday through Friday, 8 am to 3 pm. Some flexibility in time may be allowed if qualified personnel are available beyond the time limits. Call 607-547-3725

If a provider requests testing after hours, on weekends or holidays; this must be approved by the Pathologist on Call.

At the time of scheduling, or when sample is received, the provider will need to provide a clinical history of the patient along with any medications the patient may be on Patient Preparation:

No special patient preparation is required. Physicians may want to advise patients to avoid fatty foods prior to platelet function testing as certain fatty acids and lipids are known to inhibit platelet function. Neutral lipids, such as cholesterol, generally have no effect on platelet function

Subjects should be resting, fasting and non-smoking.

Subjects should avoid taking any prescription or over-the-counter medications known to affect platelet function for ten days to two weeks prior to the test.

Follow this link for more information on Drug Interactions and Platelet Function Testing