HESI RN
Maternity HESI Quizlet
1. The LPN/LVN is counseling a woman who wants to become pregnant. The woman tells the nurse that she has a 36-day menstrual cycle and the first day of her last menstrual period was January 8. The nurse calculates that the woman's next fertile period is
- A. January 14-15.
- B. January 22-23.
- C. January 30-31.
- D. February 6-7.
Correct answer: C
Rationale: To determine the fertile period, subtract 14 days from the length of the woman's menstrual cycle. In this case, 36-14 = 22. Counting forward from the first day of the last menstrual period (January 8), the fertile period falls around January 30-31. This is because ovulation typically occurs approximately 14 days before the start of the next menstrual period, marking the fertile window for conception.
2. What is the most important assessment for the healthcare provider to conduct following the administration of epidural anesthesia to a client who is at 40-weeks gestation?
- A. Maternal blood pressure.
- B. Level of pain sensation
- C. Station of presenting part.
- D. Variability of fetal heart rate.
Correct answer: A
Rationale: Following the administration of epidural anesthesia, the most crucial assessment for the healthcare provider to conduct is monitoring maternal blood pressure. Epidural anesthesia can lead to hypotension as a common side effect, which can have significant implications for both the mother and the fetus. Therefore, close monitoring of maternal blood pressure is essential to detect and manage any hypotensive episodes promptly. Choices B, C, and D are important assessments during labor and delivery, but in this specific scenario of post-epidural anesthesia, monitoring maternal blood pressure takes precedence due to the potential risk of hypotension.
3. A 6-week-old infant diagnosed with pyloric stenosis has recently developed projectile vomiting. Which assessment finding indicates to the nurse that the infant is becoming dehydrated?
- A. Weak cry without tears.
- B. Bulging fontanel.
- C. Visible peristaltic wave.
- D. Palpable mass in the right upper quadrant.
Correct answer: A
Rationale: In infants, a weak cry without tears is a classic sign of dehydration. Tears are produced by the lacrimal glands, and reduced tear production is a result of dehydration. This assessment finding should alert the nurse to the infant's dehydration status, requiring prompt intervention to prevent further complications.
4. 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.
5. The client is 30 weeks pregnant and experiencing preterm labor. Which medication should the nurse anticipate administering to promote fetal lung maturity?
- A. Betamethasone (Celestone).
- B. Magnesium sulfate.
- C. Terbutaline (Brethine).
- D. Ampicillin.
Correct answer: A
Rationale: Betamethasone (Celestone) is the medication of choice to promote fetal lung maturity in cases of preterm labor. It helps accelerate surfactant production in the fetal lungs, reducing the risk of respiratory distress syndrome. Administering betamethasone to the mother can improve the baby's lung function and overall outcome if preterm birth occurs. Magnesium sulfate is commonly used to prevent seizures in preeclampsia or eclampsia. Terbutaline is a tocolytic agent used to suppress preterm labor contractions. Ampicillin is an antibiotic used for various bacterial infections but does not promote fetal lung maturity.
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