RH factor
US /ˌɑːr eɪtʃ ˈfæk.tər/
UK /ˌɑːr eɪtʃ ˈfæk.tər/
1.
factor Rh, factor Rhesus
a group of antigens on the surface of red blood cells, important for blood transfusions and in pregnancy
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Blood type O negative means you have no A, B, or Rh factor antigens.
El tipo de sangre O negativo significa que no tienes antígenos A, B o factor Rh.
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The doctor checked her Rh factor during her first prenatal visit.
El médico revisó su factor Rh durante su primera visita prenatal.