Temporary drops in the fetal heart rate during uterine contractions are known as:
a. fetal stress.
b. decelerations.
c. primary apnea.
d. secondary bradycardia.
ANS: B
Temporary drops in fetal heart rate are called decelerations and can be mild (<15 beats/min), moderate (15 to 45 beats/min), or severe (>45 beats/min). Decelerations are classified by their occurrence in the uterine contraction cycle.
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