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MMSC409 Immunohematology Exam 3 With 100% Correct Answers 2023
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MMSC409 Immunohematology Exam 3 With 100% Correct Answers 2023
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MMSC409 Immunohematology Exam 3 With100% Correct Answers 2023
If a patient has the genotype le/le and Se/Se genotype, than what is their RBC Lewis Type? Can they secrete ABH?
a.Le(a-b-), Yes b.Le(a-b-), No
c.Le(a-b+), Yes
d.Le(a-b+), No - Correct Answer-A
2.Which Lewis phenotype is most common in Black populations?
a.Le(a-b-)
b.Le(a+b-)
c.Le(a-b+)
d.Le(a+b) - Correct Answer-A
True/False: An individual with phenotype Le(a-b+) will not make anti-Lea because they still have Lea substances in their blood.
A.True
B.False - Correct Answer-A
True/False: Lewis antibodies cannot cross the placenta
a.True
b.False - Correct Answer-A
Which genotype is associated with malaria resistance?.
a.Fy(a-b-)
b.Jk(a-b-)
c.Kp(a+b+)
d.Js(a+b+) - Correct Answer-A
Regarding the Kidd blood group which is false?
a.J(a-b-) individuals can produce anti-Jk3.
b.Kidd antibodies are mainly IgM & clinically insignificant
c.The Jk3 antigen is present on all Jka positive and/or Jkb positive individuals
d.Kidd antigens are poorly immunogenic. - Correct Answer-B
If a patient in need of a blood transfusion has an A- ABO and Jk(a-b-) phenotype, family
members should be contacted to find compatible blood instead of simply crossmatching RBC unit at the Blood Bank
a.True
b.False - Correct Answer-A Which blood group system most commonly causes of delayed transfusion reactions?
a.Duffy
b.Kell
c.Lewis
d.Kidd - Correct Answer-D
Which antigen is very immunogenic and is not denatured by ficin or papain?
a.Duffy
b.Kell
c.Lewis
d.Kidd - Correct Answer-B
Regarding the P blood group, which antibody is associated with spontaneous abortion?
a.Anti-PP1Pk
b.Anti-P
c.Anti-P1
d.Anti-p - Correct Answer-A
Which of the following is not true for anti-M and anti-N?
a.Not considered clinically significant unless IgM
b.Usually IgG
c.Do not bind to complement
d.A and B - Correct Answer-D
Which of the following is true of the XK0 phenotype (McLeod Phenotype)?
a.Associated with shortened RBC survival/anemia
b.Associated with neuromuscular abnormality (muscular dystrophy)
c.Associated with X linked chronic granulomatous disease (CGD)
d.All of the above - Correct Answer-D
How are Kidd antibodies affected by enzymes?
a.Destroyed
b.Enhanced
c.Not affected - Correct Answer-B
Which antibody is the most common after ABO and Rh?
a.anti-Lea
b.anti-Fyb
c.anti-K
d.anti-k - Correct Answer-C
True/False: The purpose of compatibility testing using in vivo test procedures to predict in vitro survival in potential recipients prior to transfusion.
a.True
b.False - Correct Answer-B
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