Category: Uncategorized

Which of the following abnormalities is consistent with the presence of LA?

A group A, D-negative obstetric patient with anti-D (titer 256) is carrying a fetus who needs and intrauterine transfusion. (You will be tranfusing the fetus via a needle passed through the mother’s abdomen into the umbilical cord.) Which of the following units should be chosen?

The main purpose of performing antibody titers on serum from prenatal immunized women is to

Platelets are ordered for a patient who has a history of febrile reactions following red cell transfusions. What should be done to reduce the risk of another febrile reaction?

All of the following statements about anti-U are correct EXCEPT

A patient has an anti-E. What crossmatch should be performed?

Which of the following matings has the potential to result in hemolytic disease of the newborn (HDN) due to antigens in any of the systems identified?

Five days after transfusion, a patient becomes mildly jaundiced and experiences a drop in hemoglobin and hematocrit with no apparent hemorrhage. Below are the results of the transfusion reaction workup. In order to reach a conclusion, the technologist should first Anti-A Anti-B Anti-D A1 Cells B Cells Ab Screen DAT Patient Pretransfusion 0 4+ 3+ 4+ 0 0 0 Patient Posttransfusion 0 4+ 3+ 4+ 0 1+ 1+ Donor #1 0 0 3+ Donor #2 0 4+ 3+

Which of the following best reflects the discrepancy seen in a sample demonstrating the acquired-B-like phenomenon?

A Kleihauer-Betke acid-elution test is performed to determine the dosage of Rh-immune globulin (RhIg). Out of 2,000 cells that were counted, 43 of them appeared to contain fetal hemoblobin. It is the transfusion services policy  to add one more dose on to the calculated number. How many doses of RhIg should this woman receive?