A nurse is administering betamethasone to a client who is in pre-term labor at 28 weeks of gestation.
The nurse should explain that the purpose of this medication is to:
Reduce inflammation in the uterus
Enhance fetal lung maturity
Prevent infection in the amniotic fluid
Increase blood flow to the placenta
The Correct Answer is B
Betamethasone is a corticosteroid that is given to pregnant women who are at risk of preterm delivery to enhance fetal lung maturity. Betamethasone stimulates the production of surfactant, a substance that lubricates the lungs and prevents them from collapsing when the baby breathes. This reduces the risk of respiratory distress syndrome and other complications in preterm infants.
Choice A is wrong because betamethasone does not reduce inflammation in the uterus.
Choice C is wrong because betamethasone does not prevent infection in the amniotic fluid.
Choice D is wrong because betamethasone does not increase blood flow to the placenta.
Normal ranges for gestational age are 37 to 42 weeks.
Preterm birth is defined as delivery before 37 weeks of gestation. Antenatal corticosteroids are recommended for women between 24 and 34 weeks of gestation who are at risk of preterm delivery within 7 days, and may be considered for women at 23 weeks of gestation or between 34 and 37 weeks of gestation depending on the clinical scenario.
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Related Questions
Correct Answer is B
Explanation
Prepare for an emergency cesarean section.This is because the client has pre-term labor that has not responded to tocolytic therapy, which are drugs that are used to delay delivery for a short time.The client’s cervix is dilated to 4 cm and she is experiencing regular contractions every 3 minutes, which are signs of active labor.The baby is at 33 weeks of gestation, which is premature and may have complications such as respiratory distress syndrome or bleeding in the brain.
Therefore, the client needs an emergency cesarean section to deliver the baby as soon as possible and prevent further risks.
Choice A is wrong because administering magnesium sulfate intravenously is a type of tocolytic therapy that the client has already failed.Magnesium sulfate may also have side effects such as nausea, vomiting, flushing, headache, and muscle weakness.
Choice C is wrong because placing the client in Trendelenburg position, which is lying on the back with the feet elevated above the head, is not recommended for preterm labor.This position may increase the risk of aspiration, decrease cardiac output, and impair gas exchange.
Choice D is wrong because administering antibiotics prophylactically is not indicated for preterm labor unless there is evidence of infection in the uterus or membranes.
Antibiotics may also cause allergic reactions or bacterial resistance
Correct Answer is A
Explanation
Ultrasound.
An ultrasound can help determine the gestational age, fetal growth, placental location, and amniotic fluid volume of the fetus.
These factors can affect the risk of pre-term labor and delivery.
An ultrasound can also detect cervical changes that may indicate pre-term labor.
Choice B is wrong because a blood count is not specific for pre-term labor.
It may be done to check for anemia, infection, or other conditions that may affect the pregnancy, but it does not directly assess the risk of pre-term labor.
Choice C is wrong because a urine culture is not specific for pre-term labor.
It may be done to check for urinary tract infection, which can cause pre-term labor, but it does not directly assess the risk of pre-term labor.
Choice D is wrong because an amniocentesis is not usually done for pre-term labor.
It may be done to check for fetal lung maturity, chromosomal abnormalities, or infections, but it is an invasive procedure that carries some risks and complications.
It does not directly assess the risk of pre-term labor.
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