Karen knight

at our facility, if one drop of Anti-D and 1 drop of  patients 3-5% is negative, we proceed to the antiglobulin weak D procedure(incubate at 37 degrees for 15 min, wash 3 times, add 2 drops of monospecific IgG, if positive macroscopically patient is considered weak D positive,  AABB technical manual 19th edition  and orthoclinical  direction circular.

Congratulations!! You have been a wonderful resource for all on this site, thank you for sharing! Cheers!

I also use Anti-B for affirmagen  A1 rgt  neg ctl  and Anti-A for affirmagen B rgt  neg control as part of new lot/newshipment check. as part of daily control I use ortho confidence

As per CAP standards TRM.30575 Misidentification risk: Verify ABO/Rh on second sample prior to transfusion and TRM.40670 ABO Group and Rh(D) type verification,  we order a non-billable TYPE2/WEAKD and result to meet the requirement for electronic crossmatch and/or type specific blood to be issued on a patient with no historical data.  This a new order/draw.. specimen must have blood bank id documented on tube by collector at time of collection in the presence of patient. if a second sample cannot be obtained and there is no documented previous ABO/Rh, immediate spin crossmatch performed using non type specific blood. if the phlebotomist is still on duty and has a clear recollection of patient they may be allowed to take tubes from earlier draw to patients bedside to re-identify patient and sample, placing blood bank id sticker on that tube. we usually use CBC tube from am draw. anytime a type and screen ordered on hosp patient the phleb asks the bb tech if a prev type exists if not a type2 is ordered on new order number requiring second venipuncture.
are your bedside test cards properly labeled date/time/init blood bank id, patient LIS label /order label to compare to patient wristband? are the results entered into patient chart?