8-12 Flashcards

1
Q

CONSIDERED TO BE THE UNIVERSAL RBC DONORS

A

TYPE O

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2
Q

WHY IS TYPE O THE UNIVERSAL DNORS

A

due to the absence of A and B antigen on their Red cells

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3
Q

genes are autosomal codominant located on the short arm of what chromosome

A

chromosome 1

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4
Q

Rh antigens are inherited as

A

codominant alleles

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5
Q

Rh antigens are transmembrane polypeptides and are integral part of

A

RBC membrane

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6
Q

frequency of D

A

85 %

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7
Q

frequency of d

A

15%

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8
Q

frequency of c

A

80 %

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9
Q

frequency of C

A

70%

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10
Q

frequency of E

A

30 %

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11
Q

frequency of e

A

98%

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12
Q

DCE terminology is also known as

A

fisher-race

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13
Q

Rh-Hr terminology is also known as

A

weiner

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14
Q

Controlled by 3 closed linked loci

A

Rh inheritance

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15
Q

each locus has its own alleles which are

A

Dd,Cc,Ee

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16
Q

theory of multiple allelomorphoric gene

A

weiner

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17
Q

ALPHA/numeric terminology terminology is also known as

A

rosenfield

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18
Q

this system has no genetic basis

A

rosenfield

19
Q

it simply demonstrate the presence or absence of the antigen in the red blood cell

A

rosenfield

20
Q

minujs sign preceding a number designates

A

absence of antigen

21
Q

numeric terminology

A

ISBT

22
Q

UNIVERSAL LANGUAGE

A

ISBT

23
Q

ADOPTED A ——– FOR EACH AUTHENTICATED BLOOD GRP SPECIFICITY

A

6-DIGIT

24
Q

2ND 3 NUMBERS

A

ANTIGEN SPECIFICITY

25
Q

1ST 3 NUMBERS

A

SYSTEM

26
Q

IgG in nature reacts at 37 degrees in AHG

A

rh antibodies

27
Q

do not bind complement

A

rh antibodies

28
Q

exposure to ——— of rh positive red cells can stimulate antibody production in an rh negative px

A

< 1 ml

29
Q

refers to the presence or absence of the red cell D

A

Rh + , Rh -

30
Q

most important red cell antigen in transfusion practice

A

D atigen

31
Q

wht does D ANTIGEN has than other red cell antigen

A

greater immunogenicity

32
Q

what isformed in transfusion and pregnancy

A

formation of anti-D

33
Q

routine pre transfusion studies

A

only anti-D

34
Q

other reagents

A

resolution of antibody problems or in family studies

35
Q

methods used in experiment 9

A

slide method
tube method

36
Q

reagents used in exp 9

A

anti-D antiserum

37
Q

sample used in experiment 9 for slide mtd

A

capillary blood

38
Q

sample used in experiment 9 for tube mtd

A

2-5 % rcs

39
Q

surface temperature

A

45-50 degrees celsius

40
Q

mins in rh viewbox

A

5 mins

41
Q

agglutination in the D tube combined with the smooth suspension in control tube red cell are

A

D +/ Rh +

42
Q

result when there is a smooth suspension of red cells in both anti D and the control tube

A

negative

43
Q

test performed to differentiate weak D expression from rh negative phenotype

A

antihuman globulin test (indirect)