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The observed phenotypes in the particular population are Phenotype        Number of people Jk (a+ b-)            122 Jk (a+ b+)          194 Jk (a- b+)           84 What is the gene frequency of Jk(a) in this population? A 0.31 B 0.45 C 0.55 D 0.60

71. The FDA consider these 5 overlapping layers of blood transfusion safety. Donor list, Donor screening, Blood testing, Quarantine, Problems and deficiencies Reciepent list, Recieptent screening, Blood testing, Quarantine, Problems and deficiencies Donor list, Recieptent screening, Blood testing, Quarantine, Problems and deficiencies Reciepent list, Donor screening, Blood testing, Quarantine, Problems and deficiencies

58 What are two tasks a phlebotomist must complete when collecting pre transfusion blood samples? Identification of the patient and checking the patient’s pre phlebotomy vital signs check the patient’s vitals signs and label the tube immediately after phlebotomy identify the patient before phlebotomy and label the tube immediately after phlebotomy Verify the patient’s reason for transfusion and label the tube as soon as possible  

42 Which of the following cells plays a role as mediators in allergic hypersensitivity reactions eosinophiles neutrophils monocytes NK lymphocytes

39. Which immunoglobulin class can cross the placenta? IgG IgM IgA IgE

36 For which of the following is HLA phenotyping not useful selecting a bone marrow donor for transplantation investigating a hemolytic transfusion reaction selecting a solid donor for organ transplantation investigation of a platelet refractoriness in transfusion recipients

What blood donor has the genotype hh, AB. Using anti A and anti B anti sera the donors red cell will be what type? A B O AB

38 Macrophages and monocytes on the FC receptor for which of the following immunoglobulin? IgG IgM IgA IgE

46.  A specimen of core blood is submitted to transfusion service for routine testing; the results are shown in this table. anti- A anti-B anti-D Rh control DAT 4+ 0 3+    negative 2+   It is known that the father is Group B and the genotype is cde/cde of these 4 antibodies which one is the most likely cause of the positive DAT? Anti-A Anti-D Anti-C Anti-c

70. Who/what determines the minimum frequency of running QC determined A. through risk assessment B. By quality control plan C. After quality assessment D. By the manufacturer