SBB Study guides, Class notes & Summaries

What is the deferral period for someone who has received a blood transfusion? - ANSWER 12 months Where does the AABB stand on pregnancy and blood donation? - ANSWER a woman is deferred if pregnant in the past 6 weeks What is the deferral period if a potential donor received the varicella zoster vaccine (live attenuated)? - ANSWER 4 weeks What is the deferral period for a whole blood donor who received the yellow fever live vaccine? - ANSWER 2 weeks What is the deferral period for som...

Human somatic cells have _____ pairs of chromosomes? a. 46 b. 23 c. 22 d. 2 - ANSWER Human somatic cells have 46 chromosomes that exist as 23 pairs. One half of each chromosome pair is inherited from each parent. Which of the following have sex-linked recessive inheritance? a. Hemophilia A b. Factor VII Deficiency c .von Willebrand's Disease d. Factor V Deficienc - ANSWER Hemophilia A and Hemophilia B are sex-linked Remember that "sex-linked" means that the gene is carried on eit...

which of the following is a carbohydrate blood group antigen? A. Fyb B. Jsa C. K D. Leb E. M - ANSWER D. Leb A patients red cells react with anti-A and the serum reacts with group B red cells . what is the patients blood group ? A. A B. B C. O D. OH E. AB - ANSWER A. A Which of the following statements is true regarding the genetics of the ABO blood group system is TRUE? A. the ABO gene is located on chromosome 1, in close approximation to the RHD gene B.ABO expression is regul...

Identifying information on the donor form should include: - ANSWER Date and time of donation Name Address Telephone # Gender Age or DOB A record of reasons for prior deferrals, if any Donors must be given educational material regarding: - ANSWER Infection diseases transmitted by blood transfusion Signs and symptoms of AIDS Risks of procedure Circumstances in which infection disease testing is not performed should be given chance to ask questions Donor qualifications: pay particul...

Kell antigens - ANSWER Kk, Kpa/Kpb, JsA/JsB, K11/K17, K14/K24, VLAN and VONG (low freq.), UlA Kx antigens - ANSWER Kx Duffy antigens - ANSWER FyA/FyB, Fy3, Fy5, Fy6 Kidd antigens - ANSWER JkA, JkB, Jk3 Lutheran antigens - ANSWER LuA and LuB Lewis antigens - ANSWER LeA and Leb I antigens - ANSWER I. (i antigen is in the Ii Blood Group Collection 207) P1PK - ANSWER P1, Pk, NOR Globoside - ANSWER P (LKE

How would Ulex europaeus react with O, A, A2, B, A2B, A1B RBCs? - ANSWER O>A2>B>A2B>A1>A1B How could you distinguish serologically A1, A2

The following phenotypes are written incorrectly except for: a. Jka+ b. Jka+ c. Jka(+) d. Jk(a+) - ANSWER D Which of the following characteristics best describes Lewis antibodies? a. IgM, naturally occurring, cause HDFN b. IgM, naturally occurring, do not cause HDFN c. IgG, in vitro hemolysis, cause hemolytic transfusion reactions d. IgG, in vitro hemolysis, do not cause hemolytic transfusion reactions - ANSWER B The Le gene codes for a specific glycosyltransferase that transfe...

The reactivity of blood group A is confirmed by detecting the presence of which immunodominant sugar molecule? a. N-acetyl-D-neuraminic acid b. L-fucose c. N-acetyl-D-galactosamine d. N-acetyl-D-glucosamine e. D-galactose - ANSWER c The mating of parents of which two ABO phenotypes can potentially produce offspring with ALL of the common four blood types? AB and O AB and A AB and B AB and AB A and B - ANSWER A and B Bombay phenotype (Oh) individuals may have antibod...

A peripheral smear with increased polychromasia, schistocytes and spherocytes is indicative of which condition? A. Aplastic anemia B. Iron deficiency anemia C. Hemolytic anemia D. Megaloblastic anemia - ANSWER C. Hemolytic anemia Megaloblastic anemia would show larger, less mature RBCs on the smear. Iron deficiency anemia would show hypochromasia, and a lower RBC count. Aplastic anemia would show very little amounts of mature RBCs on the smear Hemolytic anemia results in misshapen RB...

What enzyme may be useful in distinguishing anti-Ge2 from anti-Ge3? - ANSWER Papain (Anti-Ge2 will not react) The beta 1-3 linkage between galactose and N-actylglucosamine is found in: - ANSWER Secretions Which of the following represents the Type II chain? - ANSWER Beta 1-4 linkage between galactose and N acetyl glucosamine Rank the order of decreasing H concentration on RBCs - ANSWER 0>A2>B>A2B>A1>A1B All of the following are genotypes for the A1 phenotype except: 1...