HESI RN
HESI Maternity 55 Questions Quizlet
1. Using Nägele's rule, what is the estimated date of delivery for a pregnant client who reports that the first day of her last menstrual period was August 2, 2006?
- A. April 25, 2007.
- B. May 9, 2007.
- C. May 29, 2007.
- D. June 2, 2007.
Correct answer: B
Rationale: Nägele's rule is used to estimate the date of delivery. It involves adding 7 days to the first day of the last menstrual period (August 2), which gives August 9. Then, subtracting 3 months from August 9, we arrive at May 9 of the following year as the estimated date of delivery. This makes choice B, 'May 9, 2007,' the correct answer. Choices A, C, and D are incorrect as they do not follow the correct calculation based on Nägele's rule.
2. The nurse is measuring the frontal occipital circumference (FOC) of a 3-month-old infant, notes that the FOC has increased by 5 cm since birth, and observes that the child’s head appears large in relation to body size. Which action is most important for the nurse to take next?
- A. Measure the infant’s head-to-heel length
- B. Observe the infant for sunsetting eyes
- C. Palpate the anterior fontanel for tension and bulging
- D. Plot the measurement on the infant’s growth chart
Correct answer: C
Rationale: Palpating the anterior fontanel for tension and bulging is essential to assess for increased intracranial pressure, which could be indicated by the enlarged head circumference. This assessment can help identify potential neurological issues that need prompt attention.
3. A 34-week primigravida woman with preeclampsia is receiving Lactated Ringer’s 500ml with magnesium sulfate 20 grams at the rate of 3g/hr. How many ml/hr should the nurse program the infusion pump?
- A. 75ml/hr
- B. 100ml/hr
- C. 50ml/hr
- D. 25ml/hr
Correct answer: A
Rationale: To calculate the infusion rate, divide the total quantity to be infused (500ml) by the total time (1 hour) which equals 500ml/hr. Since the magnesium sulfate is being given at 3g/hr, and 1g of magnesium sulfate is in 5ml of solution, the rate will be 3g/hr x 5ml/g = 15ml/hr. Therefore, the total infusion rate should be 500ml/hr + 15ml/hr = 515ml/hr. Hence, the nurse should program the infusion pump to deliver 75ml/hr (515ml/hr total - 500ml/hr Lactated Ringer's rate). This choice is correct because it accounts for both the Lactated Ringer's and magnesium sulfate rates. Choice B, 100ml/hr, is incorrect as it does not consider the additional magnesium sulfate infusion rate. Choice C, 50ml/hr, is incorrect because it does not account for the magnesium sulfate infusion. Choice D, 25ml/hr, is incorrect as it is too low and does not consider the magnesium sulfate being infused concurrently.
4. During a well-child visit for their child, one of the parents with an autosomal dominant disorder tells the nurse, 'We don’t plan on having any more children, since the next child is likely to inherit this disorder.' How should the nurse respond?
- A. Explain that the risk of inheriting the disorder decreases by 50% with each child the couple has.
- B. Acknowledge that the next child will inherit the disorder since the first child did not.
- C. Encourage the couple to reconsider their decision since the inheritance pattern may be sex-linked.
- D. Confirm that there is a 50% chance of their future children inheriting the disorder.
Correct answer: D
Rationale: Confirming that there is a 50% chance of their future children inheriting the disorder is the correct response in this situation. Autosomal dominant disorders have a 50% chance of being passed on to each child. Providing accurate genetic counseling is essential to help the parents make informed decisions about family planning. Choices A, B, and C are incorrect. Choice A is inaccurate because the risk of inheriting an autosomal dominant disorder remains at 50% for each child regardless of the number of children the couple has. Choice B is not appropriate as it does not provide helpful information or support to the parents. Choice C is misleading because autosomal dominant disorders follow a specific inheritance pattern and are not sex-linked.
5. The caregiver observes a mother giving her 11-month-old ferrous sulfate (iron drops), followed by 2 ounces of orange juice. What should the caregiver do next?
- A. Tell the mother to follow the iron drops with infant formula instead of orange juice.
- B. Suggest placing the iron drops in the orange juice and then feeding the infant.
- C. Instruct the mother to feed the infant nothing for 30 minutes after giving the iron drops.
- D. Give the mother positive feedback about the way she administered the medication.
Correct answer: D
Rationale: The high vitamin C content in orange juice aids in the absorption of iron. Providing positive feedback to the mother for administering the iron drops with orange juice is appropriate as it enhances iron absorption, benefiting the infant. Encouraging and acknowledging correct medication administration can help reinforce good practices and build confidence in the caregiver. Choices A, B, and C are incorrect because they do not align with the beneficial practice of administering iron drops with orange juice, which enhances iron absorption. Changing the method of administration based on incorrect assumptions or instructing to withhold feeding after giving iron drops is unnecessary and not evidence-based.
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