Yesterday I met with our fantastic BMSes and MLAs to go over interesting/tricky cases this week. We talked about indications for washed platelets. #blooducation
Washed platelets are indicated in order to reduce risk of
Washed platelets are given to patients with a history of recurrent allergic reactions. Allergy is usually to proteins in the plasma element of the platelet unit, so removing the plasma reduces the risk.
Standard pooled platelets from @NHSBT are now in 65% PAS (additive solution) and 35% (male) plasma. Apheresis platelets are in plasma. Washed platelets are in "100%" PAS.
The shelf life of washed platelets is 24 hours because the closed circuit is breached, thus increasing the risk of bacterial contamination.
In addition, the yield of washed platelets is lower. So while washed platelets are helpful for those who need them, they should only be used when there is an appropriate indication.
Typically washed platelets need to be requested 24h in advance, but as always, if you need something, ask! We will do what we can to provide what you need.
I should have taken a picture of some washed platelets to show you... watch this space... @TransfusionGeek @JessCaldecott ? 😬
A picture of a standard bag of platelets and a bag of washed platelets. Who can tell me which is which?? Courtesy of @JessCaldecott 🙏
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