Jan

I believe that the 2004 CAP checklist has a note associated with this checklist item that says "Records of specific reactivity checks for A cells, B cells, anti-A and anti-B may be omitted when forward and reverse grouping results consistently agree." I don't know if there is a 2005 checklist version, but this note has been in several previous versions. I'm at a blood center that is not CAP-accredited but I got this information from their website.

I agree with Nancy. With the exception of non-reactivity with the Js(a+) cells, it sounds like an anti-k that is not reacting with single dose K+k+ cells or Kp(a+)k+w cells. The presence of the Kpa antigen can weaken the expression of the k antigen. Some panel manufacturer's mark this on their antigrams, others don't. Try typing your patient for k antigen.