External Fetal Heart Tone Monitoring Is Not the Best Monitoring Tool

external fetal heart tone monitoring is that it doesn't actually correlate with any physical fetal outcome so they're at-guard scores or umbilical artery pH or cerebral palsy. That's the only thing we have right now that's not invasive to help the obstetricians make decisions. Fetal heart rates should be between 110 and 160 ideally when the babies, when adults get stressed or sympathetic tone takes over when babies get stressed their parasympathetic tone takes over. The sensitivity to detect fetal acidemia is very low only 26 percent for example.