SBB Study guides, Class notes & Summaries

SBB Practice test Review 2024 with 100% Complete Solutions When preparing cryoprecipitate from plasma, the cryoprecipitate must be refrozen within? - Correct Answer ️️ -1 hour Donated blood may not be used for allogeneic transfusion when HCV testing shows? - Correct Answer ️️ -EIA initial testing reactive, and one of the duplicate repeat results is reactive The following hepatitis B testing results indicates: HBsAg: Nonreactive, Anti-HBc: Reactive, Anti-HBs: Reactive, RNA HBV: no...

SBB test prep - Clinical Immunohematology and Transfusion Exam Questions and Answers 100% Pass degree of matching for HLA-matched platelets - Correct Answer ️️ -Match Grade A: All four antigens identical Match Grade B1U: Only three antigens detected in donor, all present in recipient Match Grade B2U: Only two antigens detected in donor, both present in recipient Match Grade B1X: Three donor antigens identical to recipient, fourth antigen crossreactive with recipient Match Grade B2X: ...

The Rh system was indentified in 1940 by: - Correct Answer Landsteiner and Wiener after Levine and Stetson detected the antibody in 1039 It was named because Landsteiner and Wiener found that is was common to all: - Correct Answer Rhesus monkeys and 85% of humans The Rh system system is complex with more than 40 different Rh antigens - Correct Answer Rh positive and Rh negative refer to ONLY the presence or absence of the D antigen on RBCs People that are Rh ("D") negative (unlike ABO...

Is the Rh system more or less polymorphic than ABO? - Correct Answer More What are the five major antigens of Rh? - Correct Answer D, C, c, E, e What does the Fisher-Race theory state? - Correct Answer Rh is 3 separate genes closely linked CDe most common What does the Wiener theory state? - Correct Answer Rh is one gene complex with many alleles Capital "R" have D antigen Lower case "r" lack D antigen R0, R1, R2, RZ, r, r', r'', ry What is the Wiener notation for single a...

Select the true statement regarding Rh antibodies. a. Are not red cell stimulated b. Cannot cross the placenta c. React best at room temperature d. Usually are IgG - Correct Answer D How is the Rh genotype cDe/CDe written in Wiener notation? a. R0R1 b. RyR2 c. RzR2 d. R2R1 - Correct Answer A The following results were obtained on a donor's blood sample: Anti-A + RBCs 0 Anti-B + RBCs 4+ Anti-D + RBCs 0 Weak D test 0 (Check cells 2+) How will the unit be labeled? a. Group...

immunogenic - Correct Answer Rh antigens are very _____ second - Correct Answer rh is the ___ most important blood group system after ABO pretransfusion testing - Correct Answer determining the presence or absence of RhD is critical in ______ immunizing guinea pigs and rabbits with red cells from rhesus (Rh) monkeys - Correct Answer the Rh system was identified in the 1940's by landsteiner and wiener, reported on an antibody produced by _____ this antibody agglutinated 85% of human RB...

In 1939, the Rh blood group system was first recognized during the investigation of a female patient's clinical presentation during and after delivery of a stillborn infant. The patient also received a transfusion (blood was from the father of the baby) after the delivery. Select the correct name(s) of the clinical presentations from the list given below. a. Fatal transfusion reaction b. Hemolytic disease of the newborn c. Hemolytic transfusion reaction d. Allergic transfusion reaction ...

Band 3 - Correct Answer macrocomplex of proteins including: -Rh -RhAG -LW (ICAM-4) -GPA -GPB -CD47 ATP source for RBCs - Correct Answer 90% from Glycolysis (Embden-Meyerhoff pathway) 10% from pentose phosphate pathway Methemoglobin Reductase Pathway - Correct Answer necessary to maintain heme iron in ferrous (Fe2+) state Deficiency causes accumulation of methemoglobin, nonfunctional from of Hgb Leubering Rapaport Shunt - Correct Answer permits accumulation of 2,3-DPG "Tense ...

1. The Rh system was first recognized in a case report of: a. A hemolytic transfusion reaction. b. Hemolytic disease of the fetus and newborn. c. Circulatory overload. d. Autoimmune hemolytic anemia. - Correct Answer a. A hemolytic transfusion reaction. 2. What antigen is found in 85% of the white population and is always significant for transfusion purposes? a. d b. c c. D d. E - Correct Answer c. D 4. Cells carrying a weak-D antigen require the use of what test to demonstrat...

In the process of identifying an antibody, the technologist observed 2+ reactions with 3 of the 10 cells in a panel at the immediate-spin phase. These reactions disappeared following incubation at 37° C and the antihuman globulin phase of testing. What is the most likely responsible antibody? a. Anti-E b. Anti-D c. Anti-I d. Anti-Lea - Correct Answer d. Anti-Lea What is a characteristic of Rh system antibodies? a. Mixed-field reactions on panels b. Weak reactions with panel cells c...