Hla antigens - Study guides, Class notes & Summaries

HMX Immunology Practice Test Questions with Complete Solutions ABO blood groups - Answer carbohydrate antigens on the surface of blood cells determine blood type primary lymphoid organs - Answer bone marrow and thymus circulating leukocytes - Answer mature immune cells that circulate through blood vessels innate immunity - Answer mechanisms that exist prior to infection and are capable of rapid responses to microbes adaptive immunity - Answer a mo...

Question 1. For CD8+ T lymphocytes to recognize virally infected cells, the infected cells must — A. express functional HLA-DM molecules. B. express functional transporter associated with antigen presentation (TAP) 1 and 2 proteins. C. have trafficked through a germinal center. D. extinguish expression of its class I HLA molecules. correct answer: 1. Answer: B Explanation: In virus-infected cells, some viral proteins are degraded in the cellular proteasome, the major cellular protein de...

SBB TEST PREP - CLINICAL IMMUNOHEMATOLOGY AND TRANSFUSION EXAM 2024 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: Two donor antigens identical to r...

Chapter 9: Immunogenetics 1. Which of the following best describes immunogenetics? A) The study of genes involved in immune responses B) The study of infectious diseases C) The study of cancer genetics D) The study of hereditary disorders Answer: A Rationale: Immunogenetics focuses on the genetic factors that influence the immune system's response to pathogens and diseases. NCLEX preference: Understanding immunogenetics is crucial for assessing patient responses to infections and va...

NUR-631 Final Exam Study Guide 2023 (Questions With Complete Solutions Graded A+) fibers arise from nasal olfactory epithelium and form synapses with olfactory bulbs that transmit impulses to temporal lobe Hypoglossal nerve - ANSWER *XII* -stick out tongue -motor fibers to muscles of tongue and sensory impulse from tongue to brain -fibers arise from medulla and exit from skull and extend to tongue trigeminal nerve - ANSWER *V* -sensations of pain, touch, temperature, corneal reflex, clenc...

After frozen RBCshave been thawed and washed they must be used within how many hours? A) 6 B) 12 C) 72 D)48 correct answers 24 Which type of antibodies are known to cause TRALI? Red Cell antibodies Platelet antibodies HLA antibodies all of the above correct answers HLA antibodies What is the proper storage temperature for thawed cryoprecipitate 4-8 20-24 35-37 -20 or below correct answers 20-24 If a recipient has anti-c, which donor unit should be selected r'r RoR1 R2ry ...

QUIZ QUESTION: In an example of inflammation-mediated antibody damage to cells, Ig binds to self antigen on epithelial cells → complement binds Ig and is activated → pro inflammatory fragments of complement proteins are produced → the fragments bind to vessel walls → neutrophils move out of vessels → neutrophils bind to ____________ via receptors → neutrophils are triggered to release granules that damage cells. 1. complement proteins 2. Ig Fc portion 3. infected cells 4. sel...

degree of matching for HLA-matched platelets - 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: Two donor antigens identical to recipient, third & fourth antigen cross-reactive with recipient Match Grade C: One antig...

dCE - ANSWER-ry DCE - ANSWER-RZ Hardy Weinberg equation - ANSWER-Used to calculate allele and genotype frequencies in a population when the frequency of one genetic trait is known HLA antigens - ANSWER-Certain characteristics of blood group and ____________ antigens make them useful tools for parentage analysis Direct exclusion, indirect excursion - ANSWER-Assuming maternity is correct, paternity can be excluded in one of two ways Genetic m

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...