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 LPN/LVN identifies crepitus when examining the chest of a newborn who was delivered vaginally. Which further assessment should the nurse perform?
- A. Elicit a positive scarf sign on the affected side.
- B. Observe for an asymmetrical Moro (startle) reflex.
- C. Watch for swelling of fingers on the affected side.
- D. Note paralysis of the affected extremity and muscles.
Correct answer: B
Rationale: Crepitus in a newborn's chest following vaginal delivery may indicate a clavicle fracture. Observing for an asymmetrical Moro reflex is essential because it can indicate potential nerve damage or fracture, which may be associated with the crepitus identified during the examination.
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. In caring for a 4-year-old boy recently diagnosed with Duchenne muscular dystrophy (DMD), which characteristic of the disease is most important for the nurse to focus on during the initial teaching?
- A. Lower legs become progressively weaker, causing a waddling, unsteady gait.
- B. Growth and development have been abnormal since birth.
- C. Muscular strength can be regained with physical exercise and therapy.
- D. Respiratory dysfunction and aspiration are prime concerns at this stage of the disease.
Correct answer: A
Rationale: In Duchenne muscular dystrophy, a key characteristic is the progressive weakness in the lower legs, leading to a waddling, unsteady gait. The nurse should focus on teaching about this aspect as it helps in understanding the disease's progression and managing the symptoms effectively.
5. A full-term, 24-hour-old infant in the nursery regurgitates and suddenly turns cyanotic. What should the nurse do first?
- A. Suction the oral and nasal passages.
- B. Give oxygen by positive pressure.
- C. Stimulate the infant to cry.
- D. Turn the infant onto the right side.
Correct answer: A
Rationale: In a situation where an infant regurgitates and turns cyanotic, the priority action should be to clear any potential airway obstruction. Suctioning the oral and nasal passages is crucial to ensure the infant's airway is clear and allow for proper breathing. This intervention takes precedence over providing oxygen, stimulating the infant to cry, or repositioning the infant.
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