Nursing Elites

1. In caring for a 4-year-old boy recently diagnosed with Duchenne muscular dystrophy (DMD), which characteristic of the disease is most important for the nurse to focus on during the initial teaching?

• A. Lower legs become progressively weaker, causing a waddling, unsteady gait.
• B. Growth and development have been abnormal since birth.
• C. Muscular strength can be regained with physical exercise and therapy.
• D. Respiratory dysfunction and aspiration are prime concerns at this stage of the disease.

Correct answer: A

Rationale: In Duchenne muscular dystrophy, a key characteristic is the progressive weakness in the lower legs, leading to a waddling, unsteady gait. The nurse should focus on teaching about this aspect as it helps in understanding the disease's progression and managing the symptoms effectively.

2. 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.

3. At 20 weeks gestation, a client is scheduled for an ultrasound. In preparing the client for the procedure, the nurse should explain that the primary reason for conducting this diagnostic study is to obtain which information?

• A. Sex and size of the fetus.
• B. Chromosomal abnormalities.
• C. Fetal growth and gestational age.
• D. Lecithin-sphingomyelin ratio.

Correct answer: C

Rationale: The primary reason for an ultrasound at 20 weeks gestation is to assess fetal growth, gestational age, and anatomical development. This evaluation helps ensure the fetus is developing appropriately and can detect any potential issues that may require intervention. Choices A, B, and D are incorrect because at 20 weeks, the primary focus of the ultrasound is not to determine the sex of the fetus, detect chromosomal abnormalities, or assess the lecithin-sphingomyelin ratio. While these factors may be evaluated in pregnancy, they are not the primary reasons for an ultrasound at 20 weeks gestation.

4. The nurse is caring for a postpartum client who is complaining of severe pain and a feeling of pressure in her perineum. Her fundus is firm, and she has a moderate lochial flow. On inspection, the nurse finds that a perineal hematoma is beginning to form. Which assessment finding should the nurse obtain first?

• A. Urinary output and fluid intake.
• B. Hemoglobin and hematocrit.
• C. Abdominal contour and bowel sounds.
• D. Heart rate and blood pressure.

Correct answer: D

Rationale: In a postpartum client with a perineal hematoma, assessing heart rate and blood pressure is crucial as it can help determine the client's circulatory status. A perineal hematoma has the potential to cause significant blood loss leading to hypovolemia. Monitoring vital signs like heart rate and blood pressure can provide immediate information on the client's hemodynamic stability and guide further interventions if needed.

5. 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.

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