Donor (b)(6) was donating apheresis double red cells on an alyx machine on (b)(6) 2022 using kit lot # x4r5720.After approximately 20 minutes the donor developed a swollen face.The collection was immediately stopped at 9:16 am and the medical director was notified.The donor was given water, advised to take slow deep breaths and the donor's feet were elevated.The donor's blood pressure and pulse were taken on three occasions 15 minutes apart and all results were acceptable.The final check was at 9:50 am.The donor stated that he was feeling fine.The donor did not want to go to the hospital and went home with his wife at 10:00 am.Follow-up with the donor revealed that he took otc benadryl.The edema/swelling dissipated slowly over 4 days.Upon investigation, the donor has three prior apheresis double red cell donations on an alyx machine with no known reactions.The actual machine (alyx id # (b)(4)) showed no issues, the machine was working as expected.Fda safety report id # (b)(4).
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