Rhesus (Rh) factor waa borotiin (antigen) ku yaalla dusha sare ee unugyada dhiigga cas (red blood cells) ee dadka qaarkood.
Rh factor waxaa la ogaaday 1940-kii waxaana helay Karl Landsteiner iyo Alexander Wiener, iyagoo sameynayay tijaabooyin ku saabsan daanyeerka Rhesus.
Waxaa jira laba nooc oo Rh ah:
| Nooca Rh | Sharaxaad |
|---|---|
| Rh⁺ | Unugyada dhiigga cas waxay leeyihiin Rh antigen |
| Rh⁻ | Unugyada dhiigga cas ma leh Rh antigen |
Digniin: Haddii qof Rh⁻ ah la siiyo Rh⁺, jirku wuxuu sameeyaa antibodies, taasoo keeni karta dhibaatooyin halis ah ama dhimasho.
Waxay dhacdaa marka: 1. Hooyadu tahay Rh⁻ 2. Aabbuhu yahay Rh⁺ 3. Ilmuhu noqdo Rh⁺
Haemolytic Disease of the Newborn (HDN) Ilmuhu wuxuu yeelan karaa dhiig-yari (anaemia), jaandis (jaundice) ama xataa dhimasho.
Hooyada Rh⁻ waxaa la siiyaa cirbad la yiraahdo Anti-D injection. Cirbaddani waxay ka hortagtaa samaysanka antibodies-ka Rh.
| ABO Blood Group | Rh Factor |
|---|---|
| A, B, AB, O | Rh⁺ iyo Rh⁻ |
| La helay 1901 | La helay 1940 |
| Antibodies waa dabiici | Antibodies waxay samaysmaan marka la kulmo Rh⁺ |