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Section 4.11
Immunohematology Problem Solving
A 33-year-old maternity patient is drawn for a type and screen at 36 weeks’ gestation. The following results are found on the Ortho Provue:
Wash the patient’s red cells and repeat the forward grouping
Test the patient’s plasma against A
2
cells
Warm the patient plasma at 37°C for 10 minutes and repeat the reverse grouping
Treat the A
1
cells with dithiothreitol and repeat the reverse grouping
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