A patient is in preterm labor at 30 weeks gestation.
Her OB orders antenatal steroids.
The order is for the nurse to administer betamethasone IM and to repeat the dose after 2 hours.
Betamethasone is available as 4mg/mL in 10 mL vials.
How many mL will the nurse draw up in the syringe for each dose?
0.5 mL
1 mL
1.5 mL
3 mL
The Correct Answer is D
Step 1 is to calculate the volume of betamethasone to be drawn up for each dose. The order is to administer betamethasone IM and to repeat the dose after 2 hours. Betamethasone is available as 4mg/mL. Therefore, to administer a dose of 12mg, the nurse would need to draw up 12mg ÷ 4mg/mL = 3mL for each dose.
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Related Questions
Correct Answer is C
Explanation
Choice A rationale
Assessing deep tendon reflexes every hour is a common practice in managing severe preeclampsia. Hyperreflexia can be a sign of worsening pre-eclampsia.
Choice B rationale
Continuous fetal monitoring is typically recommended for patients with severe pre-eclampsia. This allows for early detection of fetal distress.
Choice C rationale
Ambulating twice daily may not be appropriate for a patient with severe pre-eclampsia at 35 weeks of gestation. Bed rest is often recommended to help lower blood pressure and reduce the risk of complications.
Choice D rationale
Obtaining a daily weight is a common practice in managing severe pre-eclampsia. Sudden weight gain can be a sign of worsening pre-eclampsia.
Correct Answer is C
Explanation
Choice A reason:
Fetal head compression is associated with early decelerations, not late. Early decelerations are a normal finding during labor as the fetal head is compressed during contractions, leading to a vagal response that temporarily decreases the heart rate.
Choice B reason:
Umbilical cord compression leads to variable decelerations, not late. Variable decelerations can occur at any time during the contraction cycle and are caused by compression of the umbilical cord, which can restrict blood flow to the fetus.
The correct answer is C. Uteroplacental insufficiency.
Late decelerations are indicative of uteroplacental insufficiency, which is a condition where the placenta is not delivering enough oxygen and nutrients to the fetus.
Choice D reason:
Maternal bradycardia, which is a slower than normal heart rate in the mother, does not cause late decelerations in the fetus. Instead, maternal bradycardia can be a separate concern and does not directly affect the fetal heart rate pattern observed on the monitor.
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