A nurse is reviewing the laboratory results of a client who is at 29 weeks of gestation and has pre-term labor.

Which of the following results indicates an infection that can trigger pre-term labor?

The client should not limit their physical activity and rest as much as possible, unless advised by their provider.Excessive rest and inactivity can increase the risk of blood clots and decrease blood circulation, which can affect the placenta and the fetus.The client should follow the recommended guidelines for physical activity during pregnancy, unless they have a medical condition that requires bed rest or reduced activity.

Choice A is wrong because smoking and drinking alcohol during pregnancy are known risk factors for preterm labor and birth.Smoking can reduce blood flow to the placenta and affect fetal growth and development, while alcohol can cause fetal alcohol spectrum disorders and other complications.

Choice B is wrong because reporting any vaginal bleeding or fluid leakage to the provider is important to prevent or treat preterm labor and birth.Bleeding can indicate placenta previa or placental abruption, which are serious conditions that can cause premature delivery or fetal distress.Fluid leakage can indicate rupture of membranes, which can increase the risk of infection and preterm labor.

Choice D is wrong because drinking plenty of fluids and eating a balanced diet are beneficial for the health of the mother and the fetus.Dehydration can cause uterine contractions and trigger preterm labor, while malnutrition can affect fetal growth and development.A balanced diet can also help prevent or manage conditions like diabetes, high blood pressure, and anemia, which are risk factors for preterm labor and birth.

Betamethasone is a corticosteroid that is given to pregnant women who are at risk of preterm delivery to enhance fetal lung maturity and prevent respiratory distress syndrome.It is usually given in two doses, 24 hours apart, and takes effect within 24 hours of administration.

Choice B.Magnesium sulfate is wrong because it is used to prevent seizures in women with severe preeclampsia or eclampsia, not to prevent respiratory distress syndrome.

Choice C.Nifedipine is wrong because it is a calcium channel blocker that is used to inhibit uterine contractions and prolong pregnancy in women with preterm labor, not to prevent respiratory distress syndrome.

Choice D.Indomethacin is wrong because it is a nonsteroidal anti-inflammatory drug that is used to inhibit prostaglandin synthesis and reduce uterine activity in women with preterm labor, not to prevent respiratory distress syndrome.However, it can also cause premature closure of the ductus arteriosus in the fetus and should be avoided after 32 weeks of gestation.

Normal ranges for gestational age are 37 to 42 weeks.

Preterm labor is defined as regular uterine contractions with cervical changes.