Nursing Elites

1. A child who weighs 25 kg is receiving IV ampicillin 300 mg/kg/24 hours in equally divided doses every 4 hours. How many milligrams should the nurse administer to the child for each dose?

• A. 1875 mg
• B. 625 mg
• C. 2000 mg
• D. 1500 mg

Correct answer: A

Rationale: To calculate the dose for each administration, multiply the child's weight (25 kg) by the dose (300 mg/kg/24 hours) and divide by the number of doses per day (6, as doses are every 4 hours). This gives us (25 kg * 300 mg/kg / 24 hours) / 6 doses = 1875 mg. Therefore, the nurse should administer 1875 mg for each dose. Choice B, 625 mg, is incorrect as it does not consider the correct calculation based on the weight and prescribed dose. Choice C, 2000 mg, is incorrect as it is not derived from the correct dosage calculation. Choice D, 1500 mg, is incorrect as it does not reflect the accurate dosage calculation based on the weight of the child and the prescribed dose.

2. The parents of a 3-year-old boy who has Duchenne muscular dystrophy ask, 'How can our son have this disease? We are wondering if we should have any more children.' What information should the nurse provide to parents?

• A. This is an inherited X-linked recessive disorder, which primarily affects male children in the family
• B. The striated muscle groups of males can be impacted by a lack of the protein dystrophin in their mothers
• C. The male infant had a viral infection that went unnoticed and untreated so muscle damage was incurred
• D. Birth trauma with a breech vaginal birth causes damage to the spinal cord, thus weakening the muscles

Correct answer: A

Rationale: The correct answer is A. Duchenne muscular dystrophy is an X-linked recessive disorder that primarily affects males. It is crucial for the nurse to explain to the parents that this condition follows an inheritance pattern where the gene mutation responsible for the disorder is located on the X chromosome. Males have only one X chromosome, so if they inherit the mutated gene, they will develop the disease. Females, on the other hand, have two X chromosomes, providing a backup copy that can compensate for the mutation. Understanding this inheritance pattern is essential for family planning decisions, as the risk of passing on the disorder to future children can be explained based on this genetic inheritance. Choices B, C, and D are incorrect because they do not address the genetic basis of Duchenne muscular dystrophy or its inheritance pattern, which is crucial information for the parents in this scenario.

3. A 7-year-old child with a history of asthma presents to the clinic with shortness of breath and wheezing. The nurse notes that the child’s peak flow reading is in the red zone. What should the nurse do first?

• A. Administer a bronchodilator
• B. Reassess the peak flow reading
• C. Notify the healthcare provider
• D. Provide oxygen therapy

Correct answer: A

Rationale: When a child with asthma presents with shortness of breath and wheezing, and the peak flow reading is in the red zone, indicating severe airflow limitation, the priority intervention is to administer a bronchodilator. Bronchodilators help dilate the airways quickly, improving airflow and assisting with breathing. Reassessing the peak flow reading is important but not the first action to take in a severe asthma exacerbation. Notifying the healthcare provider can be done after initiating immediate treatment with a bronchodilator. Providing oxygen therapy may be needed in some cases, but addressing the airway constriction with a bronchodilator should come first to improve ventilation.

4. A child receives a prescription for amantadine 42 mg PO BID. Amantadine is available as a 50 mg/5 mL syrup. Using a supplied calibrated measuring device, how many mL should be administered per dose? (Round to the nearest tenth.)

• A. 4.2 mL
• B. 5 mL
• C. 3.6 mL
• D. 4 mL

Correct answer: A

Rationale: To calculate the mL per dose, divide the prescribed dose (42 mg) by the concentration of the syrup (50 mg/5 mL) and then convert the result to mL. 42 mg / 50 mg = 0.84. To find the amount in mL, multiply 0.84 by 5 mL, which equals 4.2 mL. Therefore, 4.2 mL should be administered per dose.

5. A 2-year-old child is admitted with severe dehydration due to gastroenteritis. Which assessment finding indicates that the child's condition is improving?

• A. Decreased heart rate.
• B. Sunken fontanelle.
• C. Increased urine output.
• D. Dry mucous membranes.

Correct answer: C

Rationale: Increased urine output is a positive sign indicating that the child's hydration status is improving. It suggests that the kidneys are functioning more effectively and able to excrete urine, which is a crucial indicator of improved hydration levels in a dehydrated patient. Decreased heart rate (Choice A) can be a sign of possible shock. A sunken fontanelle (Choice B) is a sign of dehydration. Dry mucous membranes (Choice D) are also indicative of dehydration.

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