Nomenclatures
Four different Rh nomenclatures exist: Fisher-Race, shorthand, Wiener, and Rosenfield's numerical nomenclature. In routine work, most technologist use only the Fisher-Race and shorthand nomenclatures (Table 5-1).
Note: In shorthand, R1, R2, Ro, etc., denote red cell phenotypes, whereas R1 , R2 , Ro denote genotypes.
Table 5-1. Rh system nomenclatures and frequencies.
Antigens
Fisher-Race
| Wiener (historical)
| Rosenfield
| Approximate frequency (Caucasians) |
D
| Rho
| 1
| 85% |
C
| rh'
| 2
| 70% |
E
| rh''
| 3
| 30% |
c
| hr'
| 4
| 80% |
e
| hr''
| 5
| 98% |
Complexes
Fisher-Race
| Shorthand
|
| Genotype frequencies (Caucasians) |
CDe
| R1
|
| R1r
| 32% - most common |
cDE
| R2
|
| R1R1
| 18% |
CDE
| Rz
|
| R1R2
| 12% |
cDe
| Ro
|
| R2r
| 11% |
Cde
| r'
|
| R2R2
| 2% |
cdE
| r''
|
| Ror
| 2% |
CdE
| ry
|
| rr
| 15% |
cde
| r
|
| r"r
| 0.9% |
|
|
| r'r
| 0.8% |
| Nomenclatures
|
|