Platelet swirling is a noninvasive method for testing the quality of Platelet-rich plasma (PRP). Platelet swirling is caused by light diffraction due to the alignment of normal discoid shaped platelets. When these discoids align light that is diffracted creates a cloudy or swirling like appearance.
Perform a Platelet Swirling Test
Even though this is a noninvasive test, ensure universal precautions are taken and wear the proper personal protective equipment.
- Turn on a 50 to 100 watt white light source.
- Hold the bag of Platelet Rich Plasma horizontally, approximately 12-30 inches away from the light.
- Gently move the bag with your fingers so the PRP is in motion in front of the light.
- In the thin areas of the PRP bag, observe the appearance of the unit for swirling.
- Record results as seen.
Results of a Platelet Swirling test are recorded as positive or extensive swirl, moderate or intermediate swirl, and absent or negative swirl.
References
Platelet swirling Wikipedia(Text) CC BY-SA