These ABO, Rh, and antibody screen results were obtained by the transfusion services laboratory using the blood specimen that was collected prior to starting the emergency transfusion with O Rh-negative Red Blood Cells.
ABO and Rh typing
|anti-A||anti-B||A1 cells||B cells||anti-D|
|Screen Cell I ||3+|
|Screen Cell II ||2+|
|Screen Cell III ||2+|
* IAT = indirect antiglobulin test
What is the patient's ABO group?
Please select the single best answer