Parer J T
Biol Neonate. 1978;33(3-4):167-9. doi: 10.1159/000241066.
Oxygen consumption was measured in 8 chronically instrumented fetal sheep by a combination of recently introduced techniques. Umbilical blood flow was measured by an electromagnetic flow transducer placed around the common portion of the umbilical artery. Blood representative of that in the umbilical artery was obtained from the distal aorta. The common portion of the umbilical vein was catheterized by direct puncture of the vessel at the base of the umbilicus. An accurate micromethod was used to measure oxygen content of blood from the umbilical vessels, and oxygen consumption was calculated by application of the Fick principle. The mean fetal oxygen consumption was 7.9 +/- 1.8 ml O2/min/kg fetus.
采用最近引入的技术组合，对8只长期植入仪器的胎儿绵羊进行了耗氧量测量。脐血流量通过置于脐动脉共同部分周围的电磁流量传感器进行测量。代表脐动脉血液的样本取自主动脉远端。通过在脐根部直接穿刺脐静脉的共同部分来插入导管。采用精确的微量法测量脐血管血液中的氧含量，并根据菲克原理计算耗氧量。胎儿的平均耗氧量为7.9±1.8毫升氧气/分钟/千克胎儿。
