Wordsology Blood Bank High Yield Notes Flashcards
Write down the Weiner genotypes and match them to their corresponding Fisher-Race antigen phenotypes.
Weiner: Ro, R1, R2, Rz r, r’, r’’, ry
Fisher Race: Dce, DCe, DcE, DCE dce, dCe, dcE, dCE
Which two genes (Weiner) are the most common in the population?
R1 –> DCe
r –> dce
What percent of the population is Rh+?
85%
Asian’s are almost always what Rh type?
Asians are almost always Rh+ (D+)
What single Rh antigen is the most common in whites?
e
What single Rh antigen is the most common in Africans?
e** > c > D
e = 95%, c = 96% D = 92%
What single Rh antigen is the least common in whites?
E
What single Rh antigen is the least common in blacks
E (22%)
Followed closely by C (27%)
What two Rh phenotypes are the most commonly seen in whites?
- R1 = DCe (42%)
2. r = dce (37%)
What two Rh phenotypes are the most commonly seen in Africans/Blacks?
- Ro = Dce (44%)
2. r = dce (25%)
What two Rh phenotypes are the most commonly seen in Asians?
R1 = DCe (70%) R2 = DcE (21%)
Which Rh phenotypes are very uncommon?
Rz
r’’
ry
How is the Lewis system produced?
NOT produced by the red cell. They are ADSORBED onto the RBC from the plasma.
If only the Le gene is inherited and not the secretor gene, what antigen is adsorbed onto the RBCs and what is the phenotype?
Le ONLY
NO Secretor gene
Le(a) is adsorbed onto the RBCs!
Le (a+ b-)
If the Le gene AND secretor gene is inherited, what antigen is adsorbed onto the RBCs and what is the phenotype?
Le AND Secretor gene
Le(b) is adsorbed onto the RBCs!
Le (a- b+)
Which antibodies are naturally occurring?
ABO, Lewis, P1, MN, Lu(a)
