The nurse is teaching a group of nursing students about factors that have a role in starting labor. Which should the nurse include in the teaching session? (Select all that apply.)
that apply.)
a. Progesterone levels become higher than estrogen levels.
b. Natural oxytocin in conjunction with other substances plays a role.
c. Stretching, pressure, and irritation of the uterus and cervix increase.
d. The secretion of prostaglandins from the fetal membranes decreases.
ANS: B, C
Factors that appear to have a role in starting labor include the following: (1) natural oxytocin plays a part in labor's initiation in conjunction with other substances; and (2) stretching, pressure, and irritation of the uterus and cervix increase as the fetus reaches term size. The progesterone levels drop and estrogen levels increase. There is an increase in the secretion of prostaglandins from the fetal membranes.
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