HESI RN
HESI Pediatric Practice Exam
1. A 7-year-old child with type 1 diabetes is brought to the emergency department with abdominal pain, nausea, and vomiting. The nurse notes that the child's blood glucose level is 350 mg/dL. What should the nurse do first?
- A. Administer IV fluids as prescribed
- B. Administer insulin as prescribed
- C. Monitor the child's urine output
- D. Check the child's urine for ketones
Correct answer: A
Rationale: In a child with type 1 diabetes presenting with abdominal pain, nausea, vomiting, and a high blood glucose level, the priority is to administer IV fluids to correct dehydration and electrolyte imbalances, which are crucial in managing diabetic ketoacidosis. Administering insulin without addressing fluid deficits can lead to further complications. While monitoring urine output and checking for ketones are important steps in the care of a child with diabetes, the immediate focus should be on correcting dehydration and electrolyte imbalances through IV fluid administration to stabilize the child's condition.
2. 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.
3. What intervention should the nurse implement first for a male toddler brought to the emergency center approximately three hours after swallowing tablets from his grandmother's bottle of digoxin (Lanoxin)?
- A. Administer activated charcoal
- B. Prepare gastric lavage
- C. Obtain a 12-lead electrocardiogram
- D. Give IV digoxin immune fab (Digibind)
Correct answer: A
Rationale: Administering activated charcoal is the priority intervention as it binds with digoxin, preventing further absorption in the gastrointestinal tract. This helps reduce the amount of digoxin available for systemic circulation and minimizes its toxic effects. Gastric lavage is no longer recommended due to potential complications and lack of evidence of efficacy. Obtaining an electrocardiogram may help assess the effects of digoxin toxicity, but it is not the initial priority. IV digoxin immune fab (Digibind) is used in severe cases of digoxin toxicity but is not the first-line intervention.
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. When caring for a child with Kawasaki disease, which symptom is the most significant for making this diagnosis?
- A. Desquamation of the palms and soles.
- B. Cervical lymphadenopathy.
- C. Erythema of the hands and feet.
- D. Strawberry tongue.
Correct answer: C
Rationale: Erythema of the hands and feet is a key diagnostic criterion for Kawasaki disease. This, along with other symptoms like fever and strawberry tongue, helps in making the diagnosis. While desquamation of the palms and soles, cervical lymphadenopathy, and strawberry tongue are associated with Kawasaki disease, the presence of erythema of the hands and feet is particularly significant in diagnosing this condition.
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