30 March 2026 (Monday) - BTLP-TACT Exercise

I’ve had another email from the nice people at BTLP-TACT telling me that I’m not doing enough exercises. So here we go…
I was presented with one case – a fifty-seven year-old woman in the haematology out-patients clinic needing two units of blood.
 
She grouped as AB Rh(D) Positive but with a weak(ish) reaction in the D. I’d call that positive because she’s over fifty and it is positive, but BTLP-TACT don’t like that. So UI it is…  
The antibody screen was negative.
So… what do I issue?
Personally I’d have given AB Rh(D) Positive because she *is* AB Rh(D) Positive.
But having said the Rh(D) group is uninterpretable (even though it is) I should give Rh(D) Negative blood.
My question is that having said the Rh(D) group is uninterpretable, should I give O Rh(D) Negative (for no reason that I could actually fathom) rather than AB Rh(D) Negative?
 
There’s one way to find out… I went with two units of AB Rh(D) Negative
I got the green light.


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