I have recently been made aware of a method of platelet administration that I am unfamiliar with. I have been asking around, but am not getting far. For our general adult population, our platelets come in a unit bag. We have recently discovered that our ICU nurses are giving platelets in a "push and pull" fashion, in which they use a Y-type set (one end spiked - for inserting into the bag and the other, a luer lock - for placing a large syringe) to pull the platelets from the bag into the syringe and push the platelets rapidly into the patient. Are there any concerns for platelet activation, contamination, and the like from using this method? I should also mention NS is not attached in any way, so in case a reaction, they could potentially be unprepared.