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This is an old topic, so rather than give a detailed answer I'll link some of the papers and information I have. https://www.researchgate.net/publication/351488159_The_reasons_for_unusable_lipemic_blood_plasma_in_transfusion_treatment https://pubmed.ncbi.nlm.nih.gov/24492065/ https://www.researchgate.net/publication/318323645_Risk_Factors_for_Lipemic_Plasma_in_Blood_Donors https://pubmed.ncbi.nlm.nih.gov/23106259/

RR1? Or possibly, Danny Gaskin, who is an authority on all things Blood Transfusion/Red Cell Immunohaematology/Quality - you name it, and if you don't, he will.

This is an old post, but in case anyone was following, here is a link to the post in another forum that garnered some replies.

We are using a small hang tag (purchased from Amazon, cheap - intended to tag clothing) with a sticker I print on a fluorescent label. See below (actual size).

The sand doesn't react to temp changes as quickly, like a door open too long, which causes a false alarm, especially on an ultra low freezer. It provides a bit of a buffer, better than ethylene glycol or glycerol.

I would recommend getting the LIS. It will provide a level of patient safety that you can't get with paper. It improves workflow, especially if you are using automation. Decreases documentation errors and omissions. It will simplify billing. It will vastly reduce the piles of paper documentation that you would otherwise be storing for years - patient, donor and potentially QC (depending on the software). It simplifies inventory management, especially when you get look-backs and recalls from your blood supplier years down the road. We are a smaller hospital that went to an LIS just a few years ago. I can't imagine ever going back to paper (gives me nightmares actually!). It has definitely reduced my workload in terms of all the record keeping, reporting, etc. that is required. I am filling out fewer error reports and deviations from SOP. With staffing issues a 'normal' thing now, I need all the time I can find to do all the other things I need to get done, including working on the bench. Are you going to do the reaction workups or refer those?

I've never had a problem w BB reagents not working (except when I set them up to fail). I have seen problems with reactivity not on par with usual results. Contacting vendor discovered a change in the formula at production.