dcubed Posted October 29, 2020 Share Posted October 29, 2020 I recently started donating platelets. Being an old retired blood banker I was kind of shocked at the end of the collection when the platelets were removed and were violently shaken to get them resuspended. I recall, when I was still working, doing a volume reduction procedure on platelets and we were taught to always be very gentle with the platelets and resuspend them gently. So, I guess that I am wondering if this violent resuspension is harming the platelets? Link to comment Share on other sites More sharing options...
David Saikin Posted October 29, 2020 Share Posted October 29, 2020 We always let them rest for an hour and then on the rotator. It's been a while for me also in dealing w plt donations. It would be interesting to see the procedure as written by the vendor or the collection device, as opposed to what the inhouse procedure is. dcubed 1 Link to comment Share on other sites More sharing options...
dcubed Posted October 29, 2020 Author Share Posted October 29, 2020 I've been searching for procedures online, but have not had much success. Link to comment Share on other sites More sharing options...
David Saikin Posted October 30, 2020 Share Posted October 30, 2020 What does the vendor of your apheresis instrument say about processing the product? I would think that would be a part of their instructions for use. Link to comment Share on other sites More sharing options...
dcubed Posted October 30, 2020 Author Share Posted October 30, 2020 5 hours ago, David Saikin said: What does the vendor of your apheresis instrument say about processing the product? I would think that would be a part of their instructions for use. Unfortunately, I don't have access to that information. I'm not sure a vendor would want to talk to someone like me who is now retired and out of that loop. Link to comment Share on other sites More sharing options...
Cliff Posted October 31, 2020 Share Posted October 31, 2020 I'd contact the manager of the collecting facility. This does not sound right. We also allow ours to sit for 10 minutes to an hour before placing on an agitator. dcubed and David Saikin 2 Link to comment Share on other sites More sharing options...
David Saikin Posted November 1, 2020 Share Posted November 1, 2020 i agree with Cliff dcubed 1 Link to comment Share on other sites More sharing options...
dcubed Posted November 2, 2020 Author Share Posted November 2, 2020 I have reached out to someone that I know at the collecting facility to see if they can get me in touch with the appropriate staff to whom I can address this matter. Link to comment Share on other sites More sharing options...
dcubed Posted November 5, 2020 Author Share Posted November 5, 2020 I received a response from a customer care coordinator from the collecting facility. "It is required to initially shake the Platelets strongly to resuspend them. Later, in the process at the manufacturing labs ,the Platelets are placed on agitators or rotators to be mixed (rotated/agitated) gently while they are stored." So, not entirely satisfied with this answer, but not sure where to go from here. Link to comment Share on other sites More sharing options...
Cliff Posted November 5, 2020 Share Posted November 5, 2020 8 hours ago, dcubed said: I received a response from a customer care coordinator from the collecting facility. "It is required to initially shake the Platelets strongly to resuspend them. Later, in the process at the manufacturing labs ,the Platelets are placed on agitators or rotators to be mixed (rotated/agitated) gently while they are stored." So, not entirely satisfied with this answer, but not sure where to go from here. I always seem to stick my nose where it doesn't belong. Do you recall the device? Trima? Amicus? You could contact them, ask for their manufacturer's instructions, and provide them to the facility with a suggestion they may want to alter their policies. That does not sound healthy for the platelets. Link to comment Share on other sites More sharing options...
sbraden Posted November 10, 2020 Share Posted November 10, 2020 I am going to make an assumption, (which I hate doing) and assume the part you saw shaken was the actual collection bag, which is surprisingly small. Shaped like a long rectangle? If it was an amicus system the manual actually calls for 2 re-suspensions before mixing into the plasma collected. The phleb will hold the bag firmly, with no slack between their hands and shake it lengthwise rather vigorously. The first time I saw this I curiously asked about it since I knew we usually treated them gently. Once it is suspended in plasma it sits "x" amount of time then is sent down to process lab. If you do not shake it enough, the platelets will not release from the small bag and you will have clumping and even low-yield products. I had the exact same "What are you doing!?!" response. Some machines, like the Trima I think, will do the agitation internally. Hope this helps. Ensis01 1 Link to comment Share on other sites More sharing options...
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