Overview
When Contractions Become Too Frequent
During an oxytocin augmentation, contractions can become dangerous before the patient looks dramatically unwell.
During an oxytocin augmentation, contractions can become dangerous before the patient looks dramatically unwell. The experienced nurse reads uterine activity and the fetal heart rate together: frequent contractions shorten the interval in which the placenta can refill, while fetal heart rate changes show that compensation is failing. The contraction count establishes tachysystole; the fetal response determines how urgently the team must escalate. A reassuring tracing still requires action and close observation. Tachysystole accompanied by late decelerations, a prolonged deceleration, bradycardia, or markedly reduced variability is an emergency. The immediate response is parallel: remove the uterotonic stimulus, improve maternal oxygen delivery and uteroplacental perfusion, and maintain continuous fetal monitoring.