A technologist obtained the following results on a patient s…

A technologist obtained the following results on a patient sample: The technologist washed the patient’s cells with saline, and repeated the forward typing. A saline replacement tecnique was used with the reverse typing. The following results were obtained: Anti-A Anti-B Anti-A,B A1 Cells B Cells Original Results 4+ 3+ 4+ 2+ 4+ Results after washing patient’s cells and saline replacement 4+ 0 4+ 0 4+ The results are consistent with:

Mr. Smith was admitted to your institution for surgery. The…

Mr. Smith was admitted to your institution for surgery. The physician has ordered four units of blood. Mr. Smith’s presurgical testing showed that he has an anti-C and anti-D. How many units of ABO compatible blood would you have to screen to find four that are negative for both C and D antigens? Antigen Frequencies: D positive       85% C positive      70%