Hla antigens Study guides, Class notes & Summaries

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...

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...

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...

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 ...

CK Is Associated with Cardiac, Muscles, & Brain Tissue. Elevated CK can be seen in Strokes, Vigorous Exercise, and Muscular Dystrophy - Elevated Serum Creatine Kinase Is Associated with What Conditions? Incubate at Room Temperature or 4oC to Enhance Weak Expression - What Should Be Done if Both Forward and Reverse ABO Results are NEGATIVE? 1.) Waist Line Over: 35 in Women, and 40 in Men 2.) Triglyceride Level over 150 mg/dL 3.) Fasting Blood Glucose over 100 mg/dL 4.) LDL Under: 50 in Wo...

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

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...

SBB Final Exam Questions with All Correct Answers 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...

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...