Carbohydrate Blood Groups

19 Questions | Total Attempts: 58

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Carbohydrate Quizzes & Trivia

Questions and Answers
  • 1. 
    Which of the following is a carbohydrate blood group antigen?
    • A. 

      D

    • B. 

      Leb

    • C. 

      Jka

    • D. 

      Lua

    • E. 

      S

  • 2. 
    A patient's red cells react with anti-A and the serum reacts with group B cells.  The ABO blood group is:
    • A. 

      A

    • B. 

      B

    • C. 

      O

    • D. 

      Oh

    • E. 

      AB

  • 3. 
    The enzyme responsible for conferring H activity on the red cell membrane is:
    • A. 

      D-galactosyltransferase

    • B. 

      UDP-glucuronosyltransferase (UGT)

    • C. 

      L-fucosyltransferase

    • D. 

      Glycosyltransferase

    • E. 

      N-acetyl-galactosaminytransferase

  • 4. 
    The terminal sugar molecule that defines blood group A is:
    • A. 

      N-acetyl-D-neuraminic acid

    • B. 

      L-fucose

    • C. 

      N-acetyl-D-galactosamine

    • D. 

      D-galactose

    • E. 

      N-acetyl-D-glucosamine

  • 5. 
    A bleeding patient is in need of Group O blood.  From which US ethnic group would one find the most group O donors?
    • A. 

      European American

    • B. 

      African American

    • C. 

      Asian

    • D. 

      Native American

    • E. 

      Melanesian

  • 6. 
    In the ABO blood group the mating of which two phenotypes can produce offspring with each of the common 4 blood types? (A, B, AB, O)
    • A. 

      AB and O

    • B. 

      AB and A

    • C. 

      AB and AB

    • D. 

      A and B

    • E. 

      AB and B

  • 7. 
    Which of the following statements is true?
    • A. 

      The ABO and Rh gene loci are on chromosome 9

    • B. 

      Anti-A and anti-B made by Group B and A people are predominantly IgM

    • C. 

      A mixed field reaction is typically observed between anti-A and A2 cells

    • D. 

      A1 and A2 subgroups are distinguished serologically with the Ulex europeaus lectin

    • E. 

      Serum of Bombay phenotype people (Oh) will agglutinate group O red cells but will not agglutinate group A or group B red cells

  • 8. 
    A blood donor has the genotype hh, AB.  What is the apparent red cell phenotype?
    • A. 

      A

    • B. 

      B

    • C. 

      O

    • D. 

      AB

    • E. 

      Cannot detemine

  • 9. 
    Bombay phenotype (Oh) individuals:
    • A. 

      Have red cells that do not agglutinate with either anti-A or anti-B but do agglutinate with the Ulex europeaus lectin

    • B. 

      Have naturally occurring anti-A, -B, and -H

    • C. 

      Can be transfused safely with blood from donors of any blood group (A, B, AB, O)

    • D. 

      Have naturally occuring anti-A and anti-B but they are not active at 37C

    • E. 

      Inherit SeSe and the Se locus

  • 10. 
    Which one of the following antibodies strongly agglutinates O cells and A2 cells, but either does not agglutinate or only weakly agglutinates A1 and A1B cells?
    • A. 

      Anti-Lea

    • B. 

      Anti-A1

    • C. 

      Anti-A

    • D. 

      Anti-H

    • E. 

      Anti-B

  • 11. 
    Which of the following red cell types would be best for demonstrating the presence of anti-I in a patient's serum?
    • A. 

      Adult cells

    • B. 

      Oh Bombay cells

    • C. 

      Cord cells

    • D. 

      Le(a+b+) cells

    • E. 

      I adult cells

  • 12. 
    Which of the following statements is true regarding an acquired B antigen?
    • A. 

      It can be acquired through multiple transfusions

    • B. 

      It is not detected by monoclonal anti-B

    • C. 

      It occurs more frequently in lupus

    • D. 

      It has been associated with gram positive bacteria

    • E. 

      It is seen more often in patients with colorectal carcinoma

  • 13. 
    50 year old man presents with abdominal mass via CT scan.  History is of a B+.  Type and screen is ordered and the results are below:Anti-A: 0  Anti-B: 0 Anti-A,B: 0  A1Cell: 4+  BCell: 0His most likely diagnosis is:
    • A. 

      Hepatocellular carcinoma

    • B. 

      Testicular carcinoma

    • C. 

      Carcinoma of the pancreas

    • D. 

      Melanoma

    • E. 

      Adrenal adenocarcinoma

  • 14. 
    Which of the following concerning anti-P1 and the P1 antigen is true?
    • A. 

      Anti-P1 is predominantly IgG

    • B. 

      P1 antigen is expressed well on cord cells, equal to that of adult cells

    • C. 

      Antibody to P1 demonstrate equal reactivity with all red cells expressing P1

    • D. 

      The P1 antigen is a member of the P blood group system

    • E. 

      Antibodies to P1 are clinically significant

  • 15. 
    With regard to neutralization, which of the following antibody/neutralization pairs is correct?
    • A. 

      Anti-I and human urine

    • B. 

      Lewis antibodies and breast milk

    • C. 

      Anti-Chido and plasma

    • D. 

      Anti-Sda and hydatid cyst fluid

    • E. 

      Anti-P1 and guinea pig urine

  • 16. 
    Which of the following antibodies is commonly associated with in-vitro hemolysis?
    • A. 

      Anti-C

    • B. 

      Anti-D

    • C. 

      Anti-Fya

    • D. 

      Anti-K

    • E. 

      Anti-Lea

  • 17. 
    Which of the following can form both Lea and Leb antibodies?
    • A. 

      Le(a+b-)

    • B. 

      Le(a-b+)

    • C. 

      Le(a-b-)

    • D. 

      Le(a+b+)

  • 18. 
    Which of the following phenotypes or haplotypes occurs more frequently in African Americans than in European Americans?
    • A. 

      A

    • B. 

      I negative adult

    • C. 

      Le(a-b-)

    • D. 

      P

    • E. 

      P2

  • 19. 
    Which Lewis phenotype can Bombay (Oh) individuals NOT have?
    • A. 

      Le(a-b-)

    • B. 

      Le(a+b-)

    • C. 

      Le(a-b+)