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By betty webb (Guest Post)
09/17/2007
your blood type does not change. Labs test more throughly now than they did years ago. I was classified as ab- but I had to receive blood a few months ago and I had to take ab+.
A lab could explain it to your mother.
By Diana (Guest Post)
09/17/2007
Have her doctor explain it to her
Perhaps she is RH(-) but Du (+) which is REALLY Rh(+)
you blood type cannot change BUT labs can make typing mistakes
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