What is the reason of two different blood groups in a person?
Patient: Hi Any one htere,I have question on open heart surgery. patient Age is 46 Mitral valve scerosis weight  69  we have confusion on her blood group we checked her blood group in different places we are getting 2 results for that O-ve and O +ve.can you sugggest what might be the reason we would need to collect the donors based on this only for surgery Doctor: You might have du positive. It is a weak d antigen. So any person with negative blood group should be checked for this weak d. It can be confirmed by du test. And you should search for o negative donor. if youbhave o negative or  weak d in both cases you need o negative blood. So search for o negative.thanks for using health care magic.