ABO incompatibility and Rh incompatibility q

[dbcuse23]

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Need to clarify this situation before i take USMLE:
If a mother has type B blood and Rh+ and father is type O with Rh- what is the potential risk to the first born child???

 

[lilnoelle]

none

Its only when mom is Rh- and baby is Rh+ that its a problem.