HESI RN
HESI Pediatrics Practice Exam
1. A 10-year-old child is admitted to the hospital with a diagnosis of acute glomerulonephritis. The nurse notes that the child has edema and elevated blood pressure. What is the nurse’s priority action?
- A. Administer antihypertensive medication as prescribed
- B. Monitor the child’s urine output
- C. Elevate the child’s legs to reduce edema
- D. Restrict the child’s fluid intake
Correct answer: A
Rationale: In a child with acute glomerulonephritis presenting with edema and elevated blood pressure, the priority action for the nurse is to administer antihypertensive medication as prescribed. Managing blood pressure is essential to prevent further complications associated with the condition, such as worsening kidney function and cardiovascular strain. Monitoring urine output is important but not the priority over managing elevated blood pressure. Elevating the child's legs may help with edema but addressing the elevated blood pressure takes precedence. Fluid intake restriction may be necessary in some cases, but it is not the immediate priority when managing acute glomerulonephritis with edema and hypertension.
2. A child with a fever of 39°C (102.2°F) and a sore throat is brought to the clinic. The practical nurse suspects the child has streptococcal pharyngitis. Which diagnostic test should the practical nurse prepare the child for?
- A. Rapid antigen detection test.
- B. Throat culture.
- C. Complete blood count (CBC).
- D. Chest X-ray.
Correct answer: A
Rationale: A rapid antigen detection test is the appropriate diagnostic test for suspected streptococcal pharyngitis. This test is commonly used due to its quick results, helping in the prompt diagnosis and appropriate treatment of the condition. It specifically detects the presence of streptococcal antigens in the throat, aiding in confirming the diagnosis and guiding the healthcare provider in determining the most suitable treatment plan. Throat culture (Choice B) is a confirmatory test but is not as rapid as the rapid antigen detection test. Complete blood count (Choice C) and Chest X-ray (Choice D) are not specific tests for streptococcal pharyngitis and would not aid in confirming the diagnosis.
3. In a hospitalized child receiving IV fluids for dehydration, what is the best indicator that the child’s dehydration is improving?
- A. The child’s urine output increases
- B. The child’s skin turgor is normal
- C. The child’s weight increases
- D. The child’s vital signs are stable
Correct answer: A
Rationale: An increase in urine output is a reliable indicator of improving dehydration in a child. It signifies that the kidneys are functioning better, helping to restore fluid balance in the body. Monitoring urine output is crucial in assessing hydration status and response to treatment. Choices B, C, and D are not the best indicators of improving dehydration. Normal skin turgor is helpful but may not change immediately with improving hydration. Weight increase may reflect retained fluids rather than improved hydration status. Stable vital signs are important but may not always indicate improving dehydration.
4. The nurse is measuring the frontal occipital circumference (FOC) of a 3-month-old infant and notes that the FOC has increased by 5 inches since birth, and the child's head appears large in relation to body size. Which action is most important for the nurse to take next?
- A. Measure the infant's head-to-toe length.
- B. Palpate the anterior fontanel for tension and bulging.
- C. Observe the infant for sunken eyes.
- D. Plot the measurement on the infant's growth chart.
Correct answer: B
Rationale: Palpating the anterior fontanel for tension and bulging is crucial in assessing for increased intracranial pressure. In this scenario, the infant's large head size and rapid increase in the frontal occipital circumference raise concerns for potential issues such as hydrocephalus. Measuring the head-to-toe length (Choice A) is not the priority when assessing for increased intracranial pressure. Observing for sunken eyes (Choice C) is more indicative of dehydration rather than increased intracranial pressure. While plotting the measurement on the infant's growth chart (Choice D) is important for tracking growth, it does not address the immediate concern of assessing for increased intracranial pressure.
5. 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.
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