HESI RN
HESI Maternity 55 Questions Quizlet
1. The healthcare provider prescribes oxytocin 2 milliunits/minute to induce labor for a client at 41-weeks gestation. The nurse initiates an infusion of Ringer’s Lactate solution 1000 mL with oxytocin 10 units. How many mL/hour should the nurse program the infusion pump?
- A. 12 mL/hour
- B. 2 mL/hour
- C. 22 mL/hour
- D. 42 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate in mL/hour, first, convert 2 milliunits/minute to milliunits/hour by multiplying by 60 to get 120 milliunits/hour. Then, calculate the mL/hour using the formula: milliunits/hour (120) × total volume (1000 mL) ÷ units in IV solution (10 units) = 1200 mL/hour. Therefore, the nurse should program the infusion pump to deliver 12 mL/hour to provide the prescribed dose of oxytocin. Choice B is incorrect as it does not reflect the correct calculation. Choice C is incorrect as it is not derived from the correct formula. Choice D is incorrect as it is not the result of the accurate calculation based on the provided information.
2. The nurse is caring for a 2-day old neonate who has not passed meconium and has a swollen abdomen. The healthcare provider reviews the flat plate X-ray of the abdomen and makes a tentative diagnosis of Hirschsprung's disease. Which pathophysiological process is consistent with this neonate's clinical picture?
- A. The congenital absence of parasympathetic ganglion cells to large intestine produces no peristalsis.
- B. Pyloric obstruction causes reflux and projectile hematemesis.
- C. Partial imperforated anal opening limits passage of stools.
- D. Peristalsis moving against the intestinal obstruction causing hyperactivity of the bowel.
Correct answer: A
Rationale: Hirschsprung's disease is caused by the absence of parasympathetic ganglion cells in the large intestine, leading to a lack of peristalsis and obstruction.
3. A new mother calls the nurse stating that she wants to start feeding her 6-month-old child something besides breast milk, but is concerned that the infant is too young to start eating solid foods. How should the nurse respond?
- A. Advise the mother to wait at least another month before starting any solid foods.
- B. Instruct the mother to offer a few spoons of 2 or 3 pureed fruits at each meal.
- C. Reassure the mother that the infant is old enough to eat iron-fortified cereal.
- D. Encourage the mother to schedule a developmental assessment of the infant.
Correct answer: C
Rationale: At 6 months, infants are generally ready to start eating iron-fortified cereals as their iron stores begin to deplete. Introducing iron-fortified cereals at this age helps meet the infant's nutritional needs, particularly for iron, which becomes deficient as the infant's iron reserves diminish. It is a safe and appropriate first food to introduce to infants around 6 months of age, along with continued breastfeeding or formula feeding. Choice A is incorrect because waiting another month is not necessary if the infant is 6 months old. Choice B is incorrect as introducing pureed fruits as the first food may not provide the necessary iron that the infant needs at this stage. Choice D is also incorrect as scheduling a developmental assessment is not indicated solely based on the desire to start solid foods; it is more appropriate to reassure the mother about starting iron-fortified cereal.
4. A 36-week primigravida is admitted to labor and delivery with severe abdominal pain and bright red vaginal bleeding. Her abdomen is rigid and tender to touch. The fetal heart rate (FHR) is 90 beats/minute, and the maternal heart rate is 120 beats/minute. What action should the nurse implement first?
- A. Alert the neonatal team and prepare for neonatal resuscitation
- B. Notify the healthcare provider from the client’s bedside
- C. Obtain written consent for an emergency cesarean section
- D. Draw a blood sample for stat hemoglobin and hematocrit
Correct answer: B
Rationale: In this scenario, the priority action for the nurse is to notify the healthcare provider from the client's bedside. The clinical presentation of severe abdominal pain, bright red vaginal bleeding, rigid and tender abdomen, along with fetal bradycardia (FHR 90 bpm) and maternal tachycardia (120 bpm) indicates an urgent need for medical intervention. Notifying the healthcare provider promptly allows for immediate assessment and decision-making to address the critical condition and ensure timely and appropriate management for both the mother and fetus.
5. Immediately after birth, a newborn infant is suctioned, dried, and placed under a radiant warmer. The infant has spontaneous respirations, and the nurse assesses an apical heart rate of 80 beats/minute and respirations of 20 breaths/minute. What action should the nurse take next?
- A. Initiate positive pressure ventilation.
- B. Intervene after the one-minute Apgar assessment.
- C. Initiate CPR on the infant.
- D. Assess the infant's blood glucose level.
Correct answer: A
Rationale: A heart rate below 100 bpm in a newborn indicates bradycardia and requires intervention. Positive pressure ventilation should be initiated to improve oxygenation and help increase the infant's heart rate. This intervention is crucial to support the newborn's transition to extrauterine life and prevent further complications.
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