作者曾檢驗千餘比籍正常成人,孕婦、產婦及臍血之胎兒性紅血球,檢驗結果表示孕婦及產婦比正常成人較多有胎兒性紅血球者,孕婦和產婦之間則無明顯差別。懷孕胎次及懷孕期之長短對有胎兒性紅血球者之多寡無明顯影響。母兒有A. B. O血型不相合時比Rh不相合時較少例有胎兒性紅血球。Coombs試驗陽性例血中比一般孕婦產婦者較多有胎兒性紅血球,催產劑之靜脈注射可能方便胎兒之紅血球進入母血。孕婦及產婦血中之胎兒性紅血球可能並非全部來自胎兒,部份可能由孕婦或產婦本人產生。
The authors have examined the fetal erythrocytes of over one thousand normal adults, pregnant women, puerperal women and cord bloods in Brussels. The results of the above examination demonstrated that the fetal erythrocytes were more frequently observed in pregnant and puerperal women than in normal adults. There was no significant difference between the pregnant women and puerperal women, the first pregnancy and the subsequent ones. The length of gestation did not influence the incidence of having fetal erythrocytes. Fewer cases with fetal erythrocytes were found in the group with incompatible situation for A.B.O. than in group of Rh incompatibility, More cases with fetal erythrocytes were found in the group with positive Coombs test than in the average pregnant and puerperal women. Intravenous injection of oxytocin might favorthe transplacental passage of fetal erythrocytes from the fetus into the maternal circulation. The fetal erythrocytes in the pregnant and puerperal women probably were not all originated from the fetus, buta part of them might have been produced by the pregnant and puerperal women themselves.