The patient has been found to have anti S antibody. From the…

The patient has been found to have anti S antibody. From the screen cells below, select the option that will be used, indicating which vial is appropriate for the negative control, and which vial is appropriate for the positive control for phenotyping of red cells. Be specific in identifying the via/s needed for EACH control. No partial credit 

Four units of blood are ordered to be crossmatched on a 78 y…

Four units of blood are ordered to be crossmatched on a 78 year old who is A Rh Positive with a history of a previous anti Jka. Today, the antibody screen is negative. Three of the 4 units selected for crossmatch are incompatible when tested at AHG phase. The most likely antibody causing this incompatible reaction is: