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 B

Explanation

A. Difficulty in arousing suggests central nervous system depression, which can be a sign of magnesium toxicity. This is not a therapeutic effect and requires immediate assessment and possible discontinuation of the medication.
B. Deep tendon reflexes 2+ indicates normal neuromuscular function, which is consistent with therapeutic levels of magnesium sulfate. Loss of deep tendon reflexes is often the first sign of magnesium toxicity, so their presence at a normal level is reassuring.
C. Urinary output of 20 mL per hour is below the expected minimum (typically 30 mL/hour) and may suggest impaired renal function, which increases the risk of magnesium accumulation and toxicity.
D. Respiratory rate of 10 breaths/minute is lower than normal and may indicate respiratory depression, a serious sign of magnesium toxicity. A rate below 12 breaths/minute is concerning and not consistent with therapeutic dosing.

A. Wrap the newborn in a blanket. B. Put a hat on the newborn's head. C. Check the newborn's temperature. D. Dry the newborn thoroughly.

Correct Answer is D

Explanation

A. Wrap the newborn in a blanket helps maintain body heat after the initial drying and stimulation but is not the first priority in thermoregulation.
B. Put a hat on the newborn's head also helps prevent heat loss, particularly from the head, which is a major site of heat loss in newborns. However, this should be done after drying to avoid trapping moisture.
C. Check the newborn's temperature is important but should be done after immediate measures to prevent heat loss have been taken.
D. Dry the newborn thoroughly is the first and most critical step in preventing evaporative heat loss, which is the primary cause of newborn heat loss immediately after birth. Removing wet amniotic fluid from the skin helps stabilize temperature effectively.

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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 client is diagnosed with gestational hypertension and is receiving magnesium sulfate. The nurse determines that the medication is at a therapeutic level based on which finding?

Correct Answer is B

Explanation

After the birth of a newborn, which action would the nurse do first to assist in thermoregulation?

Correct Answer is D

Explanation

A nurse is teaching a postpartum client how to do muscle-clenching (Kegel) exercises for the perineum. The client asks the nurse, "Why do I need to do these exercises?" Which reason would the nurse most likely incorporate into the response?

The nurse is caring for a client receiving Magnesium Sulphate. The loading dose has already been given and the maintenance dose order reads 1g/hr. The drug is supplied 20g/500ml Solve the maintenance dose to be given in ml/hr

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?

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A client who has just given birth to a healthy newborn required an episiotomy. Which action would the nurse implement immediately after birth to decrease the client's pain from the procedure?

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