Chapter 14: Patterns of Inheritance - Part A: Introduction ...

If a patient has no previous ABO/Rh test record (NR) and a TAS and reflex Repeat ABO/Rh are ordered, completing the Repeat ABO/Rh test first will cause the TAS to be unsavable. When attempting to save the TAS the following message will display: "Patient's ABO/Rh was modified by another user. ................
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