HESI RN
HESI Maternity 55 Questions Quizlet
1. Assessment findings of a 4-hour-old newborn include: axillary temperature of 96.8°F (35.8°C), heart rate of 150 beats/minute with a soft murmur, irregular respiratory rate at 64 breaths/minute, jitteriness, hypotonia, and weak cry. Based on these findings, which action should the nurse implement?
- A. Swaddle the infant in a warm blanket.
- B. Obtain a heel stick blood glucose level.
- C. Place a pulse oximeter on the heel.
- D. Document the findings in the record.
Correct answer: B
Rationale: The assessment findings in the newborn, such as jitteriness, weak cry, and hypotonia, are indicative of potential hypoglycemia. To confirm this suspicion, the nurse should obtain a heel stick blood glucose level, which is the most appropriate action in this situation. Checking the blood glucose level will provide crucial information to determine the newborn's glucose status and guide further management if hypoglycemia is confirmed. Swaddling the infant in a warm blanket does not address the underlying issue of potential hypoglycemia and may not effectively raise the blood glucose level. Placing a pulse oximeter on the heel is not indicated for assessing hypoglycemia. Documenting the findings in the record is important but does not address the immediate concern of assessing and managing potential hypoglycemia.
2. In developing a teaching plan for expectant parents, the nurse plans to include information about when the parents can expect the infant's fontanels to close. The LPN/LVN bases the explanation on knowledge that for the normal newborn, the
- A. anterior fontanel closes at 2 to 4 months and the posterior by the end of the first week.
- B. anterior fontanel closes at 5 to 7 months and the posterior by the end of the second week.
- C. anterior fontanel closes at 8 to 11 months and the posterior by the end of the first month.
- D. anterior fontanel closes at 12 to 18 months and the posterior by the end of the second month.
Correct answer: D
Rationale: The anterior fontanel typically closes between 12 to 18 months, while the posterior fontanel usually closes by the end of the second month. It is important for parents to know these timeframes as it helps in monitoring the normal growth and development of their newborn. Delayed closure of fontanels may indicate potential health issues, and early closure may also warrant further evaluation by healthcare providers.
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. A mother who is breastfeeding her baby receives instructions from the nurse. Which instruction is most effective to prevent nipple soreness?
- A. Wear a cotton bra.
- B. Increase nursing time gradually.
- C. Correctly place the infant on the breast.
- D. Manually express a small amount of milk before nursing.
Correct answer: C
Rationale: The most effective instruction to prevent nipple soreness when breastfeeding is to correctly place the infant on the breast. Proper latch-on techniques ensure that the baby is properly positioned, reducing the risk of nipple soreness. When the baby is positioned correctly, they can nurse effectively without causing discomfort to the mother.
5. The nurse is assessing a newborn who was precipitously delivered at 38 weeks' gestation. The newborn is tremulous, tachycardic, and hypertensive. Which assessment action is most important for the nurse to take?
- A. Perform a gestational age assessment.
- B. Obtain a drug screen for cocaine.
- C. Determine reactivity of neonatal reflexes.
- D. Weigh and measure the newborn.
Correct answer: B
Rationale: The correct answer is to obtain a drug screen for cocaine. Tremulousness, tachycardia, and hypertension in a newborn can be signs of neonatal abstinence syndrome, often caused by maternal drug use, such as cocaine. Identifying maternal drug use is crucial for appropriate management and treatment of the newborn.
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