HESI RN
Maternity HESI Quizlet
1. The healthcare provider prescribes Amoxicillin 500mg PO every 8hrs for a child who weighs 22 pounds. The available suspension is labeled Amoxicillin Suspension 250mg/5ml. The recommended maximum dose is 50mg/kg/24hr. How many mL should the nurse administer in a single dose based on the child’s weight?
- A. 10mL
- B. 15mL
- C. 7.5mL
- D. 5mL
Correct answer: A
Rationale: To calculate the dose for the child weighing 22 pounds, first convert the weight to kg: 22 lbs ÷ 2.2 = 10 kg. The maximum dose based on weight would be 10 kg × 50 mg/kg/24hr = 500 mg/24hr. Since the medication is prescribed every 8 hours, the dose for each administration would be 500 mg ÷ 3 doses = 166.67 mg. As the available suspension is 250mg/5ml, the nurse should administer 166.67 mg ÷ 250 mg/mL = 0.67 mL per dose. However, since it's not practical to administer a fraction of a milliliter, the nurse should round up to the nearest appropriate dose, which is 10mL.
2. A full-term infant is transferred to the nursery from labor and delivery. Which information is most important for the LPN/LVN to receive when planning immediate care for the newborn?
- A. Length of labor and method of delivery.
- B. Infant's condition at birth and treatment received.
- C. Feeding method chosen by the parents.
- D. History of drugs given to the mother during labor.
Correct answer: B
Rationale: When a full-term infant is transferred to the nursery, the most crucial information for the LPN/LVN to receive for immediate care planning is the infant's condition at birth and any treatments received. This data helps in determining the initial care needs and monitoring requirements for the newborn. Choices A, C, and D are not as critical as the infant's condition at birth and treatment received. The length of labor and method of delivery may provide background information but may not be as essential for immediate care planning. The feeding method chosen by the parents and the history of drugs given to the mother during labor are important but do not take precedence over knowing the infant's condition and treatment received.
3. What action should the nurse take if an infant, who was born yesterday weighing 7.5 lbs (3,402 grams), weighs 7 lbs (3,175 grams) today?
- A. Inform and assure the mother that this is normal weight loss.
- B. Encourage the mother to increase the frequency of breastfeeding.
- C. After verifying the accuracy of weight, notify the healthcare provider.
- D. Monitor the stool and urine output of the neonate for the last 24 hours.
Correct answer: A
Rationale: The correct action for the nurse to take in this situation is to inform and assure the mother that this weight loss is normal. Newborns can lose up to 10% of their birth weight in the first few days after birth, which is attributed to fluid loss and adjustment to life outside the womb. This weight loss is typically regained within the first two weeks of life. It is crucial for the nurse to educate and provide reassurance to the mother about this common occurrence in newborns.
4. A neonate with congenital adrenal hypoplasia (CAH) presents with ambiguous genitalia. What is the primary nursing consideration when supporting the parents of a child with this anomaly?
- A. Discuss the need for cortisol and aldosterone replacement therapy after discharge
- B. Support the parents in their decision regarding the sex assignment of their child
- C. Offer information about ultrasonography and genotyping to determine sex assignment
- D. Explain that corrective surgical procedures consistent with sex assignment can be delayed
Correct answer: B
Rationale: Supporting the parents in their decision regarding the sex assignment of their child is crucial as it respects the parental role in making this important decision and helps provide emotional support during a challenging time. The primary focus should be on helping the parents navigate the complexities and implications of determining the sex assignment for their child with ambiguous genitalia.
5. 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.
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