exlimey

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Not she, but it's possible the person that conveyed it to me got it from Dr. Worlledge.

Something one of my mentors said early in my career: "Don't worry about junk. If it's a real antibody and you transfuse against it, it'll be nice and strong by the next time you see the patient."

Your comments are spot-on, Malcolm. A "reference range" is typically the expected result from normal individuals. This is fine for something like a platelet count or a creatinine quantitation (or any of the chemistries), but is absolute nonsense for an assay that has only two potential outcomes: Positive or Negative. I suppose "Indeterminant" might be a third option. Here's your Reference Range for Antibody Screens: Positive / Negative / Indeterminant

Concur with the above. It would have be a very serious F-M bleed to impact phenotyping. While there is a theoretical risk of mixed field, and potentially spurious interpretation of the results, if a gravid patient develops an antibody that late in the gestation, the very small risk of mistyping/reporting is worth taking.

Is this approach applied to rare units ? For example, a donor who is Kp(b-), with anti-Kpb in their circulation. Granted, such a unit would probably only go to someone who already had anti-Kpb, so technically there would be no impact (analogous to Mabel's anti-D scenario). Just curious.

It's remotely possible that Ortho use different diluents for different cells. I remember a rumor that "fresh" cells are suspended in one kind of diluent, but frozen-thawed cells are in a similar diluent with a couple of extra chemicals to compensate for the freeze-thaw process. I think that frozen-thawed (deglycerolized) cells are sometimes used in emergencies when the scheduled donor(s) don't appear.

I agree with all the previous comments. You cannot manage a transfusion reaction in a patient who has died from lack of blood. One thing to add: In the time before time......emergency release units were always O negs. However, today's practice has evolved in a risk-based manner and it is now accepted that O pos units can fulfil this function. Perhaps ironically, if the old practice had been employed in this case (use O negs), it would have been very unlikely that this patient would get a E+ unit.

Any of the major laboratory suppliers can help with lab design and furniture, for a price, of course. VWR (Avantor) and Thermo-Fisher are probably top of the list. I think that Mabel is referring to "Herman Miller" - a longtime standard for labs and offices. I think they may sell direct or through the distributors. Good luck. Designing a new space can be both fun and frustrating. Nothing can ever be perfect, compromises always have to be made.

I think you can just use basic 40% glycerol (in water). Glycerol is available from many sources. Use an equal volume of 40% glycerol to washed, packed red cells. Freeze @ -80 C is small aliquots. I don't remember the details of recovery, but it involves washing with a couple of different Saline concentrations, akin to deglycerolizing red cells for transfusion. The "Valeri Method" - see the article below. Vox Sang 2000;79(3):168-74. An experiment with glycerol-frozen red blood cells stored at -80 degrees C for up to 37 years. C R Valeri 1, G Ragno, L E Pivacek, G P Cassidy, R Srey, M Hansson-Wicher, M E Leavy

What type of freezer are you planning to use ?