Lewis antigen synthesis Study guides, Class notes & Summaries

Lewis blood group correct answers -antigens: Lea & Leb -alleles: Le dominant and le recessive -dominant Le codes for the production of a glycosyltransferase and Lea and Leb antigens -interacts with the secretor genes (Se and se) -ISBT # 007 Le(a+b-) correct answers white: 22% black: 23% Le(a-b+) correct answers white: 72% black: 55% Le(a-b-) correct answers white: 6% *black: 22%* Le(a+b+) correct answers rare phenotype that is only seen in the Asian population -Lewis b antig...

State the antigens associated with the Lewis blood group system and their frequencies in the population. correct answers The Lewis antigens are Le(a) & Le(b). -phenotypes possible: Le(a+b-), Le(a-b+), Le(a-b-) -phenotype frequencies in US population: Le(a+b-) → 22% white ppl & 23% black ppl Le(a-b+) → 72% white ppl & 55% black ppl Le(a-b-) → 6% white ppl & 22% black ppl Explain the absence of the Le(a+b+) phenotype. correct answers Le(a+b+) is seen in 10-40% of Asian ppl and is ver...

State the antigens associated with the Lewis blood group system and their frequencies in the population. correct answers The Lewis antigens are Le(a) & Le(b). -phenotypes possible: Le(a+b-), Le(a-b+), Le(a-b-) -phenotype frequencies in US population: Le(a+b-) → 22% white ppl & 23% black ppl Le(a-b+) → 72% white ppl & 55% black ppl Le(a-b-) → 6% white ppl & 22% black ppl Explain the absence of the Le(a+b+) phenotype. correct answers Le(a+b+) is seen in 10-40% of Asian ppl and is ver...

AB MT 2023/2024 EXAM REVIEW All of the following donors would be permanently deferred EXCEPT which one? - CORRECT ANSWER-38-year-old male who received rabies vaccine after a dog bite 3 months ago All of the following donors would be permanently deferred: - CORRECT ANSWER-75- year-old male who had acute hepatitis 20 years ago following surgery, 19-y/o first-time donor who received human growth hormone 12 years ago, and a 24-y/o donor with a history of a positive test for Hepatitis C fro...

AAB MT IMMUNOHEMATOLOGY ELABORATED QUESTIONS WITH REVIEWED ANSWERS 2023/2024 All of the following blood donors would be permanently deferred except which one? - CORRECT ANSWER-38yr old male who received rabies vaccine after a dog bite 3mos ago What is the interval blood donations? - CORRECT ANSWER-8 weeks The oral temperature of a donor must not exceed which value? - CORRECT ANSWER37.5C 99.5F What is the minimum acceptable hemoglobin for blood donors? - CORRECT ANSWER12.5 g/dL for al...

AAB MT 2023/2024 EXAM REVIEW All of the following donors would be permanently deferred EXCEPT which one? - CORRECT ANSWER-38-year-old male who received rabies vaccine after a dog bite 3 months ago All of the following donors would be permanently deferred: - CORRECT ANSWER-75- year-old male who had acute hepatitis 20 years ago following surgery, 19-y/o first-time donor who received human growth hormone 12 years ago, and a 24-y/o donor with a history of a positive test for Hepatitis C fr...

AAB MT IMMUNOHEMATOLOGY ELABORATED QUESTIONS WITH REVIEWED ANSWERS 2023/2024 All of the following blood donors would be permanently deferred except which one? - CORRECT ANSWER-38yr old male who received rabies vaccine after a dog bite 3mos ago What is the interval blood donations? - CORRECT ANSWER-8 weeks The oral temperature of a donor must not exceed which value? - CORRECT ANSWER37.5C 99.5F What is the minimum acceptable hemoglobin for blood donors? - CORRECT ANSWER12.5 g/dL for al...

MMSC 409 Exam 3 With 100% Correct Answers 2023

Chapter 1 RBCs and Platelet Preservation: Historical Perspectives and Current Trends Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. Which metabolic pathway is responsible for generating 90% of the ATP for the RBC? a. Pentose phosphate shunt c. Glycolysis b. Luebering-Rapoport shunt d. Methemoglobin reductase ____ 2. A unit of blood was returned to the blood bank before it was spiked. Apparently the patient’s IV failed. The unit of ...

  FFP used for - Answer: Multiple coagulation deficiencies Factor XI deficiency Cryoprecipitate used for - Answer: Replace fibrinogen loss due to DIC Massive bleeding Dysfibrinogenemia with active bleeding Plateletpheresis preparation steps - Answer: Light spin (remove RBC) Heavy spin (spin down PLT and WBC) Supernatant goes into bag for freezing (FFP) Remaining plasma, platelets, and WBC = platelets Irradiated blood prevents - Answer: GVHD Also used for ca...