I just received a notification from Ortho about recently transfused patients and interpretation guide.
"Following centrifugation of a freshly collected patient sample drawn from a recently transfused patient, the potential exists for the donor's transfused red cells, which are denser and heavier, to concentrate at the bottom of the sample tube in a layer below the patient's own red cells, which are less dense and lighter. If the cell suspension used for testing contains a majority of transfused donor cells, unexpected patient results could be observed due to the patient cells being an absent or minor population in the prepared cell suspension. The unexpected patient result could be a result associated with the transfused donor cells, or it could be due to a mix of patient and donor cell populations"
Currently I use gel for antibody screening and id and gel crossmatches only...no antigen typing or ABO typing.
Do you think that I would have to change anything in my SOP's?
Hi everyone, our lab is planning to get a new coag machine and I would like to ask your personal experiences and opinion about the two choices that we have. I've only worked with ACL machines. Which machine do you think is best for a small lab? Which is more cost efficient? Less problem with QC controls especially D-dimer controls (which we usually have a problem with ACL Elite)?
Hoping for any input!
We use the Ortho Confidence system to QC our wet reagents. I have been alerted that there will be a delay in the next lot number shipment due to the (US) government shutdown. The current lot that we are using expires 10/29/2013 and the new lot # is set to ship on 10/30/2013.
My question is, can I use patient samples that have established values for QC testing for the couple of days that I am without unexpired QC material? If so, how many examples of a particular value do I have to have in order for it to be a valid QC evaluation? For instance, if I want to use a group A patient to QC the anti-A reagent, how many times does that patients blood group have to have been tested?
Thanks for the input.