Open AccessOxygen Tension, Carbon Dioxide Tension and pH In Amniotic Fluid and Maternal Arterial Blood During Induced Maternal Hyperoxia and Hypoxia
Author(s) -
Johnell H. E.,
Nilsson B. A.,
TammivaaraHilty Ritva
Publication year - 1971
Publication title -
acta obstetricia et gynecologica scandinavica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.401
H-Index - 102
eISSN - 1600-0412
pISSN - 0001-6349
DOI - 10.3109/00016347109157312
Subject(s) - hyperoxia , amniotic fluid , hypoxia (environmental) , medicine , oxygen tension , arterial blood , anesthesia , oxygen , pregnancy , fetus , andrology , chemistry , biology , lung , organic chemistry , genetics
The effect of maternal hyperoxia and hypoxia on Po 2 Pco 2 , and pH in maternal arterial blood and in amniotic fluid was studied in 8 pregnant women in the second trimester. Hyperoxia with about 100% O 2 gave an increase in maternal Pa o2 , to about 500–600 mmHg followed by a significant increase in amniotic fluid Po 2 . Pronounced hypoxia (10% O 2 ) reduced maternal Pa o2 to about 40 mmHg and caused a significant decrease in amniotic fluid Po 2 . Minor changes in Pco 2 , and pH of maternal arterial blood and amniotic fluid were seen during hyperoxia and hypoxia.