NCIt related terms : Late Fetal Heart Deceleration; Late Fetal Heart Rate Deceleration;
NCIt definition : A gradual decrease in the fetal heart rate and return to baseline that is associated
with a uterine contraction. The nadir of the deceleration occurs after the peak of
the uterine contraction, and the time from onset to nadir of the deceleration is greater
than or equal to 30 seconds.;