The perinatal nurse is assessing a woman who is at 35 weeks' gestation in her first pregnancy. She ...

ANS: D
Preterm labor is defined as regular uterine contractions and cervical changes before the end of the 37th week of gestation. Many patients present with preterm contractions but only those who demonstrate changes in the cervix are diagnosed with preterm labor. Because this woman has no demonstrated cervical changes, she does not have the diagnosis. Also reassuring is the infrequency of her contractions; a defining characteristic of preterm labor is persistent uterine contractions (4 every 20 minutes or 8 per hour). Another reassuring finding is the presence of V-shaped cervical funneling ; a change to U-shaped cervical funneling in a woman with a shortened cervix is associated with preterm labor in high-risk women with a prior spontaneous preterm birth. The woman does not require corticosteroids or magnesium sulfate or admission to the high-risk OB unit.