Chemical dilution and clearance studies to estimate amniotic fluid volume and amniotic fluid ingestion in normal baboon pregnancies.

Amniotic fluid volume (AFV) and amniotic fluid ingestion rate (or fetal swallowing rate, FSR) were estimated by inulin and para-aminohippurate (PAH) dilution in 14 normal baboon pregnancies. Mean (± SE) AFV was significantly lower at 137-140 days of pregnancy (preterm) than at 173-178 days (term) (inulin: 326 ± 22.9 ml vs 483 ± 55.

Brief report: Body water estimates in normally grown baboon neonates.

Water contents of various body water compartments were estimated within nine hours of birth in 11 preterm and eight term baboon (Papio cynocephalus neonates. Estimated water contents of all body compartments (in ml) increased linearly with birthweight (r = 0.52 to 0.