As a transfusion medicine physician, I must know if I can trust my staff’s interpretation of immunohematology testing. I may be called at night and they will provide me with results and I must use these to make a medical judgment. If their interpretation is flawed, I might make a decision that harms the patient.
I really don’t like multiple-choice questions, but nowadays this is often the norm. For my staff, especially senior staff and those who want to be promoted to senior staff, I have developed a series of projective exercises to help me understand their thought processes.
Here is another exercise for ABO discrepancies. I offered this to senior technologist and supervisory candidates:

Can they name the conditions that give these results?
23/9/20