These are the results of the crossmatch that was being performed in the transfusion service laboratory while the patient was receiving the two units of O Rh-negative RBCs.
Cells | Gel IAT* |
Donor 1** | 2+ |
Donor 2** | 2+ |
Donor 3 | 3+ |
Donor 4 | 3+ |
Donor 5 | 2+ |
Donor 6 | 3+ |
* IAT = indirect antiglobulin test
** O Rh-negative RBC (Donors 3 - 6 are O Rh-positive)