Talking Tuesday: The Type B Baby

What happens when two parents with type A blood give birth to a blood type B baby? Chaos. That’s what. Type A parents cannot give birth to a type B baby, because genetics. But this seemed to have happened one night when I was working the lab all by myself. Was the father the baby’s real father? Was the mother the baby’s real mother? Did I make a mistake in typing the baby’s blood? The answer probably won’t surprise you, so this is more of a cautionary tale.


Mistakes happen all the time in medicine. Some are minor and go unnoticed. Others, however, can be small in size but huge in consequences. Here’s the story of one such mistake.

Background music by Partners in Rhyme.

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