HESI RN
Maternity HESI 2023 Quizlet
1. At 39-weeks gestation, a multigravida is having a nonstress test (NST), the fetal heart rate (FHR) has remained non-reactive during 30 minutes of evaluation. Based on this finding, which action should the nurse implement?
- A. Initiate an intravenous infusion.
- B. Observe the FHR pattern for 30 more minutes.
- C. Schedule a biophysical profile.
- D. Place an acoustic stimulator on the abdomen.
Correct answer: D
Rationale: In cases where the fetal heart rate remains non-reactive during an NST, using an acoustic stimulator on the abdomen can help stimulate fetal movement and promote heart rate reactivity. This intervention aims to assess the fetus's well-being and response to external stimuli, which can provide valuable information about fetal health status.
2. At 40-weeks gestation, a client presents to the obstetrical floor with spontaneous rupture of amniotic membranes at home, in active labor, and feeling the urge to push. What information should the nurse prioritize obtaining?
- A. Color and consistency of fluid.
- B. Estimated amount of fluid.
- C. Any odor noted at the rupture of membranes.
- D. Time of membrane rupture.
Correct answer: A
Rationale: Assessing the color and consistency of amniotic fluid is crucial as it can indicate the presence of meconium, which suggests potential fetal distress. This information guides the need for further assessments and interventions to ensure the well-being of the mother and fetus. Estimating the amount of fluid is not as critical as determining the color and consistency to identify fetal distress. While noting any odor is important, it is secondary to assessing the fluid itself. Knowing the time of membrane rupture is helpful but not as crucial as evaluating the characteristics of the amniotic fluid.
3. A loading dose of terbutaline (Brethine) 250 mcg IV is prescribed for a client in preterm labor. Brethine 20 mg is added to 1,000 mL of D5W. How many milliliters of the solution should the nurse administer?
- A. 45
- B. 15 mL
- C. 4
- D. 13
Correct answer: D
Rationale: To calculate the amount of terbutaline to administer, first convert the dose to the same unit. 250 mcg = 0.25 mg. Next, set up a proportion: 20 mg is to 1000 mL as 0.25 mg is to X mL. Cross multiply and solve for X: 20 × X = 0.25 × 1000. X = (0.25 × 1000) / 20 = 12.5 mL. Therefore, the nurse should administer 13 mL of the solution. Choice A is incorrect as it does not reflect the correct calculation. Choice B is incorrect as it does not consider the accurate conversion and calculation. Choice C is incorrect as it is not the result of the correct proportion calculation.
4. 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.
5. Upon arrival in the nursery, a newborn infant is breathing satisfactorily but appears dusky. What action should the LPN/LVN take first?
- A. Notify the healthcare provider immediately.
- B. Suction the infant's nares, then the oral cavity.
- C. Check the infant's oxygen saturation rate.
- D. Position the infant on the right side.
Correct answer: C
Rationale: The priority action in this scenario is to check the infant's oxygen saturation rate. This will provide crucial information on the infant's oxygen levels and the need for immediate oxygen therapy. Assessing oxygen saturation is essential in determining the severity of hypoxia and guiding further interventions to ensure adequate oxygenation. Option A is not the priority as immediate intervention related to oxygenation is needed before notifying the healthcare provider. Suctioning (Option B) may be necessary but should come after assessing oxygen saturation. Positioning the infant (Option D) does not address the immediate need to evaluate oxygen levels.
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