The effect of placental isolation on umbilical artery blood gas measurements.
prospective_cohort · Level II
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- Record sourced from PubMed, PMID 17466680.
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Abstract
We conducted a study to determine whether the pH and base excess of umbilical artery blood samples are significantly different when taken from a double-clamped segment of umbilical cord as compared with a nonisolated segment of umbilical cord. A prospective study with 43 singleton pregnancies was conducted. Matched pair samples of umbilical arterial blood were compared from double-clamped and nonisolated segments. The means for pH and base excess were compared and a paired t test was used to determine significance. The means for pH and base excess were not significantly different (P = .70) between the 2 groups. Double clamping the umbilical cord before obtaining an umbilical artery sample is not necessary for accurate blood gas results.
Medical subject headings
- Blood Gas Analysis
- Umbilical Arteries