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1. 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.
2. Twenty minutes after a continuous epidural anesthetic is administered, a laboring client's blood pressure drops from 120/80 to 90/60. What action should the healthcare provider take?
- A. Notify the healthcare provider or anesthesiologist immediately.
- B. Continue to assess the blood pressure every 5 minutes.
- C. Place the woman in a lateral position.
- D. Turn off the continuous epidural.
Correct answer: C
Rationale: Placing the woman in a lateral position is the appropriate action to improve venous return and cardiac output, helping to stabilize the blood pressure. This position can alleviate pressure on the inferior vena cava, reducing the risk of hypotension associated with epidural anesthesia. Turning off the continuous epidural would not be the initial action as it may not be necessary and could lead to inadequate pain relief for the client. Notifying the healthcare provider or anesthesiologist immediately is premature and should be done after attempting non-invasive interventions. Continuing to assess the blood pressure every 5 minutes is important, but placing the woman in a lateral position should be the first intervention to address the hypotension.
3. A 4-week-old premature infant has been receiving epoetin alfa (Epogen) for the last three weeks. Which assessment finding indicates to the healthcare provider that the drug is effective?
- A. Slowly increasing urinary output over the last week.
- B. Respiratory rate changes from the 40s to the 60s.
- C. Changes in apical heart rate from the 180s to the 140s.
- D. Change in indirect bilirubin from 12 mg/dl to 8 mg/dl.
Correct answer: C
Rationale: The correct answer is C. Epoetin alfa stimulates erythropoiesis, leading to an increase in red blood cell production and improving oxygen-carrying capacity. As the oxygenation status improves, there is a reduction in heart rate. Therefore, changes in apical heart rate from the 180s to the 140s indicate that the drug is effective. Choices A, B, and D are incorrect because they do not directly reflect the expected outcome of epoetin alfa therapy. Increasing urinary output, changes in respiratory rate, and decreasing bilirubin levels are not primary indicators of the drug's effectiveness in this context.
4. After a full-term vaginal delivery, a postpartum client's white blood cell count is 15,000/mm3. What action should the nurse take first?
- A. Check the differential, as the WBC count can be normal for this client.
- B. Assess the client's temperature, pulse, and respirations every 4 hours.
- C. Notify the healthcare provider, as this finding may indicate infection.
- D. Assess the client's perineal area for signs of a perineal hematoma.
Correct answer: A
Rationale: In postpartum clients, a white blood cell count of 15,000/mm3 can be within normal limits due to physiological changes that occur after childbirth. Checking the differential count would provide a more detailed analysis of the specific types of white blood cells present, helping to differentiate between normal postpartum changes and potential infection. This action allows the nurse to gather more information before escalating the situation to the healthcare provider or initiating other assessments. Assessing vital signs and the perineal area are important aspects of postpartum care but may not be the priority in this scenario where the white blood cell count can be influenced by normal physiological changes.
5. One hour after giving birth to an 8-pound infant, a client's lochia rubra has increased from small to large, and her fundus is boggy despite massage. The client's pulse is 84 beats/minute, and blood pressure is 156/96. The healthcare provider prescribes Methergine 0.2 mg IM × 1. What action should the healthcare provider take immediately?
- A. Give the medication as prescribed and monitor for efficacy.
- B. Encourage the client to breastfeed rather than bottle-feed.
- C. Have the client empty her bladder and massage the fundus.
- D. Call the healthcare provider to question the prescription.
Correct answer: D
Rationale: The correct action for the healthcare provider to take immediately is to call the healthcare provider to question the prescription. Methergine is contraindicated in clients with hypertension due to its potential to elevate blood pressure further. In this scenario, the client's blood pressure is already elevated at 156/96, making it unsafe to administer Methergine. The LPN/LVN should advocate for the client's safety by questioning the prescription to prevent potential harm.
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