Non-ABO/Rh Blood Groups Quiz

9問 • 1年前

問題一覧

Which of the following phenotypes is seen MORE frequently in those of European descent than in those of African descent? Fy(a-b-) phenotype S-s-U phenotype R0 haplotype K+k+ phenotype Le(a-b-) phenotype

K+k+ phenotype

A person with which one of the following red cell phenotypes is expected to be resistant to Plasmodium vivax malaria? Fy(a-b-) phenotype Rhnull phenotype McLeod phenotype S-s-U- phenotype Le(a-b-) phenotype

Fy(a-b-) phenotype

Which of the following red blood cell antigens shows increased expression following incubation with proteolytic enzymes? Duffy antigens MN antigenswrong Kidd antigenscorrect Kell antigens Lutheran antigens

Kidd antigens

You are told that a patient has the "McLeod Syndrome." Which of the following is most likely to be TRUE regarding the patient? The patient is susceptible to Streptococcus infections The patient has stomatocytes in his peripheral blood smear The patient has increased levels of Kell blood group antigens The patient presents with seizures or involuntary movements The patient has an increased level of Kx antigen in his blood

The patient presents with seizures or involuntary movements

Which of the following lectins is matched appropriately with its target antigen? Vicea graminea: N antigen Dolichos biflorus: H antigen Salvia: A2 antigen Ulex europaeus: A1 antigen Ulex europaeus: Sda antigen

Vicea graminea: N antigen

Which of the following red cell antigens is fully and strongly expressed on red blood cells from a term neonate? I antigen K antigen A antigen Lea antigen P1 antigen

K antigen

Which of the following is TRUE about the I blood group system? Auto-anti-i is associated with Mycoplasma pneumonia Auto-anti-I is associated with infectious mononucleosis i antigen is stronger on adult RBCs than neonatal RBCs Patients with auto-anti-I may require a "prewarmed" crossmatch before transfusion Antibodies in this system are usually clinically significant

Patients with auto-anti-I may require a "prewarmed" crossmatch before transfusion

Which of the following is TRUE of the P1PK and GLOB blood group systems? The P antigen is the point of entry of Plasmodium vivax into the red cell Anti-P1 is a common cause of hemolytic disease of the fetus/newborn Anti-P1 is an insignificant antibody neutralized by pigeon egg white fluid The lack of antigens in these systems may lead to the McLeod syndrome Antibodies against these antigens are not associated with hemolytic transfusion reactions

Anti-P1 is an insignificant antibody neutralized by pigeon egg white fluid

A 5 year old child had an upper respiratory infection 5 days ago. Today, his mother brings him to the emergency room because his urine was bright red this morning. Upon admission, he appears pale, his hemoglobin is 6.4 g/dL, his urine and serum have free hemoglobin, and his direct antiglobulin test (DAT) is weakly positive with anti-C3 only (anti-IgG is negative). Which of the following is most likely TRUE? This child has Paroxysmal Nocturnal Hemoglobinuriawrong The antibody specificity is most likely anti-P The child should be tested for syphilis Transfusion should wait until antigen-negative blood is available The antibody is most likely a high-titer IgM antibody The diagnostic test is the "Donath-Wiener" test

The antibody specificity is most likely anti-P

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Yves Laure Pimentel · 64問 · 2年前

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