We follow the same practice as Mabel. The second sample is required for all patients who do not type as Group O and we also use other lab specimens that were collected at different times than the original blood bank sample.
The second type must be from a separate phlebotomy event. If we are unable to get a second blood type, which is rare, we do use Group O cells. We very rarely have problems getting Group O cells.
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mlapierre got a reaction from Christy Spence in Misidentification risk mitigation alternativesWe follow the same practice as Mabel. The second sample is required for all patients who do not type as Group O and we also use other lab specimens that were collected at different times than the original blood bank sample.