Chapter 7 Other blood group systems Flashcards

Exam 3

1
Q

This type of antigen is only inherit one from each parent
It is also developed at birth

A

Kell Antigens

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2
Q

What are the two major antigens of Kell antigens.

A

K (K1) and k (K2/cellano)

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3
Q

This antigen is known as penney and is a low-frequency antigen

A

Kp^a

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4
Q

This antigen is known as rautenburg and is a high-frequency antigen

A

Kp^b

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5
Q

This antigen is known as sutter

A

Js^a

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6
Q

This antigen is known as matthews

A

Js^b

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7
Q

K, k, kpa, kpb, Jsa, Jsb is apart of what blood group antigens?

A

Kell antigens

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8
Q

This type of antigen group have disulfide-bonded regions on the glycoproteins. This makes them sensitive to sulfhydril reagents?

A

Kell Antigens

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9
Q

RBC that lacks expression of Kell glycoprotein?

A

K0 or Kellnull phenotype

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10
Q

Lacks all Kell system antigens?

A

K0 or Kellnull phenotype

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11
Q

Expressed elevated levels of related Kx antigens?

A

K0 or Kellnull phenotype

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12
Q

As a result of red blood cell immune stimulation, K0 individuals can develop what?

A

anti-Ku

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13
Q

In the Kell group what are the high-incidence alleles?

A

k, Kpb, and Jsb

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14
Q

In the Kell group what are the low-incidence alleles?

A

K, kpa, and Jsa

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15
Q

This blood group is a sex linked gene (x chromosome)

A

Kx Blood Group system

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16
Q

This blood group is genetically separate from Kell but phenotypically related

A

Kx blood group

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17
Q

What is McLeod Phenotype?

A

Individuals who lacked Kx antigen that may demonstrate RBC abnormalities

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18
Q

What are some symptoms of McLeod Phenotype?

A

RBC abnormalities
Muscular and neurologic defects
Increased creatine kinase

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19
Q

What is McLeod Syndrome associated with?

A

Chronic granulomatous disease

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20
Q

This blood group have antigens developed at birth and is destroyed by enzymes

A

Duffy Blood group

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21
Q

What are the codiminant alleles for Duffy Blood Group

A

Fya and Fyb

22
Q

What are the antibodies of Duffy

A

Anti-Fya and Anti-Fyb

23
Q

Certain malarial parasites will not invade what

A

Fy (a-b-) negative cells

24
Q

Fya and Fyb acts as a receptor for what?

A

the merozoite to attach to the RBC

25
What are the 3 antigens of Kidd
Jka, Jkb, and Jk3
26
Jk3 is present whenever what are present?
Jka and Jkb
27
These kidd antibodies is a common cause of delayed hemolytic transfusion reactions
Anti-JKa and Anti-Jkb
28
These antigens exist on chromosome 19
Lutheran Antigen
29
These antigens are weakly expressed on cord blood cells
Lutheran Antigens
30
This type of Lutheran Antibodies may occur without RBC stimulation, shows mixed-field pattern, and mild cases of HDFN
Anti-Lua
31
This type of Lutheran Antibodies are rare due to high incidence of antigen, shows mixed-field pattern and is associated with transfusion reactions
Anti-Lub
32
This type of antigen are manufactured by tissue cells and secreted into body fluids
Lewis antigens
33
Lea and Leb are not what
alleles
34
This system depends on Hh, Se, and Le gene
Lewis system
35
If the Le gene is inherited what substance is produced?
Lea
36
Le, H, and Se genes must all be inherited to convert what?
Lea to Leb
37
Lewis Antibodies are produced by what?
Le(a-b-)
38
Anti-Lea binds what and may cause hemolysis in vitro
Complement
39
Neutralization can confirm the presence or eliminate reactions with what antibody
Lewis antibodies
40
patient Serum + Lewis substance = what?
0
41
Patient serum + saline control = what?
1+
42
Neutralized serum + Le(a+b+) = what?
Anti-leb (or a) confirmed
43
True or false are I and i antigens are antithetical antigens?
False, they are not anthithetical antigens
44
What are P1PK antigens?
P1 and Pk
45
What are the 3 phenotypes of P1PK?
P1, P2, and null (p)
46
This antibody is found in P2 individuals, IgM; enhanced by ezymes, non-RBC stimulated and can be neutralized by P1 substance
Anti-P1
47
This antibody is associated with cold paroxysmal hemoglobinuria, IgG (Donath-Landsteiner antibody) and may appear in children after viral infections?
Autonanti-P
48
This antibody can occur in individuals with the null phenotype, causes hemolysis in vitro and is clinically significant
Anti-PP1Pk
49
This is coded by Glycophorin A, differ positions on 1 and 5 and is on glycophorin A (GPA)
M and N
50
This is coded by glycophorin B, differ at position 29
S, s, and U
51
This antibody is most frequently found in dialysis patients that due to formaldehyde-sterilized instruments
Anti-N