Nursing Elites

1. 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.

2. 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.

3. In which chromosome pattern is Duchenne disease inherited?

• A. Autosomal dominant
• B. Autosomal recessive
• C. X-linked recessive
• D. Mitochondrial

Correct answer: C

Rationale: Duchenne disease is caused by a mutation in the DMD gene located on the X chromosome, leading to an X-linked recessive inheritance pattern. Males are typically affected by this disorder as they have only one X chromosome, while females are carriers with one normal and one affected X chromosome.

4. A new mother asks the LPN/LVN, 'How do I know that my daughter is getting enough breast milk?' Which explanation should the nurse provide?

• A. Weigh the baby daily, and if she is gaining weight, she is eating enough.
• B. Your milk is sufficient if the baby is voiding pale straw-colored urine 6 to 10 times a day.
• C. Offer the baby extra bottle milk after her feeding, and see if she is still hungry.
• D. If you're concerned, you might consider bottle feeding so that you can monitor her intake.

Correct answer: B

Rationale: The correct answer is B. Adequate voiding is a sign that the baby is receiving enough milk. Pale straw-colored urine 6 to 10 times a day indicates proper hydration and nutrition. This is a reliable indicator of adequate breast milk intake for the infant. Choice A is incorrect because weight gain alone may not always indicate sufficient milk intake. Choice C is incorrect because supplementing with bottle milk can interfere with establishing breastfeeding. Choice D is incorrect as it suggests switching to bottle feeding, which is not necessary if the baby is latching and voiding well.

5. A neonate with congenital adrenal hypoplasia (CAH) presents with ambiguous genitalia. What is the primary nursing consideration when supporting the parents of a child with this anomaly?

• A. Discuss the need for cortisol and aldosterone replacement therapy after discharge
• B. Support the parents in their decision regarding the sex assignment of their child
• C. Offer information about ultrasonography and genotyping to determine sex assignment
• D. Explain that corrective surgical procedures consistent with sex assignment can be delayed

Correct answer: B

Rationale: Supporting the parents in their decision regarding the sex assignment of their child is crucial as it respects the parental role in making this important decision and helps provide emotional support during a challenging time. The primary focus should be on helping the parents navigate the complexities and implications of determining the sex assignment for their child with ambiguous genitalia.

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