A nurse is teaching a new mother about breastfeeding. The nurse determines that the teaching was successful when the woman identifies which hormone as responsible for milk let-down?

progesterone

estrogen

prolactin

oxytocin

Answer and Explanation

The Correct Answer is D

A. Progesterone plays a significant role in maintaining pregnancy and preparing the breasts for lactation, but it is not responsible for the milk let-down reflex.
B. Estrogen helps with breast development and ductal growth during pregnancy, but it does not trigger the milk let-down reflex.
C. Prolactin is responsible for milk production (lactogenesis) but not for the actual release of milk from the breast.
D. Oxytocin is the hormone responsible for the milk let-down reflex, which causes milk to be released from the milk glands into the nipple when the baby suckles. It also promotes uterine contractions after childbirth.

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Correct Answer is C

Explanation

A. Fluid replacement is important for maintaining maternal and fetal circulation, but it is not the priority immediately following a seizure. Oxygenation and stabilizing the mother’s condition are more critical in the acute phase.

B. Birth of the fetus may become necessary if the mother’s condition worsens, but the immediate priority is stabilizing the mother and ensuring proper oxygenation to prevent further complications for both the mother and fetus.

C. Oxygenation is the priority intervention after a seizure in eclampsia. Seizures can lead to a decrease in oxygen levels, and ensuring adequate oxygenation is crucial for both the mother and fetus. The nurse should administer oxygen to support breathing and prevent hypoxia.

D. Control of hypertension is essential in managing eclampsia, but the immediate focus should be on stabilizing the mother post-seizure, which includes ensuring adequate oxygenation first. Once stabilized, antihypertensive medications can be administered as necessary.

A. 8.4 mEq/L B. 6.1 mEq/L C. 10.8 mEq/L D. 3.3 mEq/L

Correct Answer is B

Explanation

A. 8.4 mEq/L is above the therapeutic range and may indicate magnesium toxicity. Levels greater than 7.5–8 mEq/L can lead to loss of deep tendon reflexes, and higher levels can cause respiratory depression and cardiac arrest.
B. 6.1 mEq/L falls within the therapeutic range for magnesium sulfate when used to treat severe preeclampsia, which is generally 4.8–8.4 mEq/L (or 4–7 mEq/L depending on the source and unit of measurement). This level is considered safe and effective for preventing seizures.
C. 10.8 mEq/L is too high and indicates magnesium toxicity, placing the patient at risk for serious complications like respiratory or cardiac arrest.
D. 3.3 mEq/L is below the therapeutic range, suggesting that the dose may be inadequate to prevent eclamptic seizures in a woman with severe preeclampsia.

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A nurse is teaching a new mother about breastfeeding. The nurse determines that the teaching was successful when the woman identifies which hormone as responsible for milk let-down?

Nursing Test Bank

Naxlex Comprehensive Predictor Exams

A woman with gestational hypertension develops eclampsia and experiences a seizure. Which intervention would the nurse identify as the priority?

Correct Answer is C

Explanation

A woman is receiving magnesium sulfate as part of her treatment for severe preeclampsia. The nurse is monitoring the woman's serum magnesium levels. The nurse determines that the drug is at a therapeutic level based on which result?

Correct Answer is B

Explanation

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