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5 August 2025 (Tuesday) - BTLP-TACT Exercise

I’m at something of a loose end whilst waiting for the washing machine to finish, so I thought I might as well have a go at a BTLP-TACT exercise.
I was presented with two cases
 
01931 – a seventy-eight year-old woman with vitamin K deficiency needing group and save and two units of cryo.
She grouped as B Rh(D) Positive with a negative antibody screen.
Bearing in mind that cryo is not recommended to treat vitamin K deficiency I didn’t give her any.
 
86108 – a forty-one year-old woman needing six units of blood right away for a ruptured ectopic pregnancy.
She grouped as A Rh(D) Positive with an antibody screen positive in cell 3. I requested antibody panels.
The IAT panel was positive in cells 2, 3, 4, 6, 7 and 10 corresponding with anti-N. The enzyme panel was negative as you might expect with anti-N
 
I selected two units of A Rh(D) Positive, two units of O Rh(D) Positive and one unit of O Rh(D) Negative which were all K-negative N-negative. Bearing in mind there were no more suitable N-negative units I’m not sure what else I might have done.
 
I got the thumbs down as it claimed that the D group of the second patient was uninterpretable. Was it? Did I make a mistake? Possibly. It would be nice to be able to have a look-see.

I had another go. It gave me one case – a thirty-six year-old woman having a miscarriage needing group and save.
She grouped as O Rh(D) Positive with a negative antibody screen.
I got it right this time.


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