9 January 2025 (Thursday) - BTLP-TACT

Time for another BTLP-TACT exercise… I was presented with one case – a seventy-seven year-old woman requiring group and save.
 
The control was positive and in the past that has invalidated the entire group.
The antibody screen was positive in all three cells so I performed antibody panels.
The IAT panel was positive in all cells but 4 and 8 which could possibly have been a combination of D, E, Cw, S, Lu(a), K, Fy(a). However the enzyme screen was negative, so in BTLP-TACT world this would be a combination of anti-S and anti-Fy(a).
 
I got it wrong…
The combination of anti-S and anti-Fy(a) was correct but in BTLP-TACT world apparently anti-K might have been there too. I’m sure that in the past anti-K has had to work by enzyme in their exercises.
I shall add that to their list of foibiles…
 
But apparently anti-Jk(a) could not be excluded even though panel cell four had a negative reaction despite being Jk(a) positive.
In layman’s terms, that’s bollox.

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