Elphick M C, Hull D, Sanders R R
Br J Obstet Gynaecol. 1976 Jul;83(7):539-44. doi: 10.1111/j.1471-0528.1976.tb00882.x.
The concentration of free fatty acids was measured in blood taken from the umbilical artery and vein of 29 infants during elective Caesarean section and compared with levels in maternal venous blood. The mean venous-arterial (v-a) difference was 0.07 mEq/l. There was a direct and significant correlation between the umbilical v-a difference and maternal venous concentrations.
在29例择期剖宫产婴儿的脐动脉和脐静脉血中测量游离脂肪酸浓度,并与母体静脉血中的水平进行比较。平均静脉-动脉(v-a)差值为0.07 mEq/l。脐部v-a差值与母体静脉浓度之间存在直接且显著的相关性。