HESI RN
HESI Practice Test Pediatrics
1. 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.
2. A mother brings her 3-week-old infant to the clinic because the baby vomits after eating and always seems hungry. Further assessment indicates that the infant’s vomiting is projectile, and the child seems listless. Which additional assessment finding indicates the possibility of a life-threatening complication?
- A. Irregular palpable pulse
- B. Hyperactive bowel sounds
- C. Underweight for age
- D. Crying without tears
Correct answer: D
Rationale: In this scenario, the infant presenting with vomiting, lethargy, and projectile vomiting indicates a potential serious condition. Crying without tears is a sign of dehydration, a critical condition that can lead to life-threatening complications in infants. Dehydration can rapidly worsen an infant's condition, making prompt intervention crucial to prevent further complications. Irregular palpable pulse (Choice A) could indicate a cardiovascular issue but is less immediately life-threatening in this context. Hyperactive bowel sounds (Choice B) are more indicative of gastrointestinal issues rather than a life-threatening complication. Underweight for age (Choice C) may be concerning for growth-related issues but does not directly indicate a life-threatening complication like dehydration does.
3. The nurse is providing care for a 12-year-old child who was recently diagnosed with scoliosis. The child’s parent asks about treatment options. What is the nurse’s best response?
- A. Scoliosis can be corrected with exercises and physical therapy.
- B. Bracing is often recommended to prevent further curvature of the spine.
- C. Surgery is usually necessary for all cases of scoliosis.
- D. There is no effective treatment for scoliosis.
Correct answer: B
Rationale: Bracing is commonly used in moderate cases of scoliosis to prevent progression of the spinal curvature. Choice A is incorrect because exercises and physical therapy can help manage scoliosis but may not correct it. Choice C is incorrect as surgery is usually reserved for severe cases of scoliosis that do not respond to other treatments. Choice D is incorrect because there are effective treatments available for scoliosis, such as bracing, and surgery when necessary.
4. The healthcare provider plans to administer 10 mcg/kg of digoxin elixir as a loading dose to a child who weighs 55 pounds. Digoxin is available as an elixir of 50 mcg/ml. How many milliliters of the digoxin elixir should the healthcare provider administer to this child?
- A. 5 ml
- B. 10 ml
- C. 15 ml
- D. 20 ml
Correct answer: A
Rationale: To calculate the dose, first, convert the child's weight to kilograms by dividing 55 pounds by 2.2, which equals approximately 25 kg. Then, multiply the weight by the dose (10 mcg/kg) to get the total dose needed, which is 250 mcg. Next, divide the total dose by the concentration of the elixir (50 mcg/ml) to determine the volume needed, which is 5 ml. Therefore, the correct dose is 5 ml based on the child's weight and the concentration of the elixir.
5. When reinforcing information about the use of corticosteroids in treating asthma in children, which statement indicates that the parent understands the teaching?
- A. My child should take the medication only when experiencing symptoms.
- B. I will rinse my child's mouth after each use of the inhaler.
- C. I should discontinue the medication if my child seems better.
- D. Corticosteroids are used for quick relief during an asthma attack.
Correct answer: B
Rationale: Rinsing the mouth after using corticosteroid inhalers is crucial as it helps prevent oral thrush, a common side effect associated with these medications. This practice reduces the risk of developing fungal infections in the mouth and throat, maintaining optimal oral health during asthma treatment.
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