We use the dipstick pH as do many area facilities to test our random units. Our blood supplier is using the BacT Alert for testing apheresis platelets.
How have your A subgroup patients tolerated transfusion of random A units? We do not see many >A1's but I honor every one I see and give A1 neg units without investigating if the antibody is IgG or not.
We see more >A1 passively infused through IV Ig infusion. This has caused some hemolysis issues in the past. I do not believe there is a >A/>B titer limit placed on pharmaceutical manufacturers to prevent this.
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