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 healthcare provider prescribes magnesium sulfate 6 grams intravenously (IV) to be infused over 20 minutes for a client with preterm labor. The IV bag contains magnesium sulfate 20 grams in dextrose 5% in water 500 mL. How many mL/hour should the nurse set the infusion pump?
- A. 150 mL/hour
- B. 250 mL/hour
- C. 50 mL/hour
- D. 275 mL/hour
Correct answer: A
Rationale: To calculate the infusion rate, first, determine the total volume to be infused (6 grams of magnesium sulfate) over a specific time frame (20 minutes). Then, calculate the concentration of magnesium sulfate in the IV bag to determine the mL/hour rate. The IV bag contains 20 grams of magnesium sulfate in 500 mL of solution, which means there are 4 grams of magnesium sulfate per 100 mL. Since 6 grams are required, the nurse should set the pump to deliver 150 mL/hour to infuse the prescribed dose over 20 minutes. Choice B, 250 mL/hour, is incorrect because it miscalculates the amount of magnesium sulfate infused per hour. Choice C, 50 mL/hour, is incorrect as it is too slow to deliver the required dose in the specified time frame. Choice D, 275 mL/hour, is incorrect as it overestimates the infusion rate and would deliver the dose too quickly.
3. When teaching a gravid client how to perform kick (fetal movement) counts, which instruction should the nurse include?
- A. If 10 kicks are not felt within one hour, drink orange juice and count for another hour.
- B. Count the movements once daily, for one hour, before breakfast.
- C. Avoid caffeinated drinks for 24 hours before conducting the kick test.
- D. Exercise for 15 minutes before starting the counting to help increase fetal movement.
Correct answer: A
Rationale: When teaching a gravid client about kick (fetal movement) counts, the nurse should instruct them that if 10 kicks are not felt within one hour, they should drink orange juice and continue counting for another hour. This instruction is crucial as a drop in fetal movements could indicate potential issues with fetal well-being, and taking action such as rechecking after food intake is recommended to monitor the situation closely.
4. Just after delivery, a new mother tells the nurse, 'I was unsuccessful breastfeeding my first child, but I would like to try with this baby.' Which intervention is best for the LPN/LVN to implement first?
- A. Assess the husband's feelings about his wife's decision to breastfeed their baby.
- B. Ask the client to describe why she was unsuccessful with breastfeeding her last child.
- C. Encourage the client to develop a positive attitude about breastfeeding to help ensure success.
- D. Provide assistance to the mother to begin breastfeeding as soon as possible after delivery.
Correct answer: D
Rationale: The correct intervention is to provide immediate assistance to the mother to begin breastfeeding as soon as possible after delivery. This approach helps initiate bonding and successful breastfeeding. Taking action promptly can address the mother's desire to breastfeed and promote positive outcomes for both the mother and the newborn.
5. At 40 weeks gestation, a client presents to the obstetrical floor with spontaneous rupture of amniotic membranes at home and is in active labor. The client feels the need to bear down and push. What information is most important for the nurse to obtain first?
- A. Estimated amount of fluid.
- B. Any odor noted when membranes ruptured.
- C. Color and consistency of fluid.
- D. Time the membranes ruptured.
Correct answer: C
Rationale: The color and consistency of the amniotic fluid are crucial to assess as they can provide valuable information about the presence of meconium, which may indicate fetal distress. Meconium-stained amniotic fluid can lead to complications such as meconium aspiration syndrome in the newborn. Therefore, assessing the color and consistency of the amniotic fluid is the priority in this situation to ensure timely interventions if needed. Estimated amount of fluid (Choice A) may be important but not as critical as assessing for meconium. Any odor noted when membranes ruptured (Choice B) is less relevant compared to assessing for meconium. Knowing the time the membranes ruptured (Choice D) is important but does not take precedence over assessing for fetal distress indicated by meconium presence.
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