A nurse is admitting a client who is at 30 weeks of gestation and has pre-term labor.
Which of the following medications should the nurse anticipate administering to prevent fetal respiratory distress syndrome?
Betamethasone
Magnesium sulfate
Nifedipine
Indomethacin
The Correct Answer is A
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.
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Correct Answer is D
Explanation
All of the above.The nurse should include all of these signs and symptoms in the teaching as they may indicate pre-term labor.Pre-term labor occurs when regular contractions begin to open the cervix before 37 weeks of pregnancy.
Choice A is wrong because decreased fetal movement is not a normal sign of pre-term labor, but it may indicate fetal distress or other complications.
Choice B is wrong because increased vaginal discharge is not a normal sign of pre-term labor, but it may indicate infection or rupture of membranes.
Choice C is wrong because pelvic pressure is not a normal sign of pre-term labor, but it may indicate cervical dilation or descent of the fetus.
Correct Answer is A
Explanation
History of urinary tract infections.According to the Mayo Clinic, untreated vaginal infections, such as urinary tract infections or sexually transmitted infections, are risk factors for preterm labor.
These infections can cause inflammation and irritation of the cervix, which can trigger contractions and cervical dilation.
Choice B is wrong because maternal age of 25 years is not a risk factor for preterm labor.In fact, women younger than 18 or older than 35 are more likely to have a preterm delivery.
Choice C is wrong because singleton pregnancy is not a risk factor for preterm labor.On the contrary, being pregnant with twins, triplets, or more (called "multiple gestations") is associated with a higher risk of preterm labor and birth.
Choice D is wrong because cervical length of 3 cm is not a risk factor for preterm labor.A short cervix (less than 2.5 cm) or a cervix that shortens in the second trimester instead of the third trimester is a risk factor for preterm delivery.A normal cervical length ranges from 3 to 5 cm during pregnancy.
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