What happens when you put O+ blood in a O- body?
I know O- can be put in everywhere but what happens, when you put a blood group in a body that would fit the group, but mismatches the rhesus factor.
I know it's not the smartest thing to do but what were the complications that could be expected gor doing it anyway — let's say in an emergency when nothing else is available.
Edit: As suggested in the comments, I should add this to it, for those who do not know about the different blood groups:
The Rh system
Red blood cells sometimes have another antigen, a protein known as the RhD antigen. If this is present, your blood group is RhD positive. If it's absent, your blood group is RhD negative. This means you can be 1 of 8 blood groups:
A RhD positive (A+)
A RhD negative (A-)
B RhD positive (B+)
B RhD negative (B-)
O RhD positive (O+)
O RhD negative (O-)
AB RhD positive (AB+)
AB RhD negative (AB-)
0- is compadible with ally blood groups, 0+ with all positive ones and so on.