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. The practical nurse is reinforcing education with the parents of a child prescribed iron supplements for iron-deficiency anemia. Which statement by the parents indicates they need further instruction?
- A. We will give the iron supplement with milk to reduce stomach upset.
- B. We should give the iron supplement with orange juice to improve absorption.
- C. The supplement may cause the stools to appear dark or black.
- D. We should store the iron supplements out of reach of children.
Correct answer: A
Rationale: Iron supplements should not be given with milk as calcium can interfere with iron absorption. Instead, it is recommended to give it with a source of vitamin C, such as orange juice, to enhance iron absorption. Giving iron supplements with milk may decrease the absorption of iron and should be avoided. Choice B is the correct method to improve iron absorption. Choice C is correct as iron supplements can cause dark or black stools due to unabsorbed iron. Choice D is also correct as iron supplements should always be stored out of reach of children to prevent accidental ingestion.
3. A 15-year-old adolescent with anorexia nervosa is admitted to the hospital for severe weight loss. The nurse notes that the client has dry skin, brittle hair, and is severely underweight. What is the nurse’s priority intervention?
- A. Establish a therapeutic relationship with the client
- B. Monitor the client’s vital signs frequently
- C. Initiate a structured eating plan
- D. Provide education about healthy eating habits
Correct answer: C
Rationale: In this scenario, the priority intervention for the nurse is to initiate a structured eating plan. Anorexia nervosa is a serious eating disorder characterized by severe food restriction, which can lead to malnutrition and severe weight loss. By starting a structured eating plan, the nurse can ensure the client receives the necessary nutrition to begin the process of weight restoration and recovery. Monitoring vital signs is essential, but without addressing the nutrition deficiency, vital signs may not improve significantly. Establishing a therapeutic relationship is crucial for long-term care but may not address the immediate risk of malnutrition. Providing education about healthy eating habits is important but may not be effective initially due to the severity of the client's condition.
4. A 3-year-old child is admitted to the hospital with severe dehydration. The healthcare provider prescribes an IV infusion of 0.9% normal saline. The nurse notes that the child’s heart rate is 150 beats per minute, and the blood pressure is 90/50 mm Hg. What should the nurse do first?
- A. Administer the IV fluids as prescribed
- B. Notify the healthcare provider
- C. Check the child’s urine output
- D. Reassess the child’s vital signs in 30 minutes
Correct answer: A
Rationale: In a pediatric patient with severe dehydration and signs of compromised hemodynamics such as tachycardia (heart rate of 150 bpm) and hypotension (blood pressure of 90/50 mm Hg), the priority intervention is to administer IV fluids as prescribed. Immediate fluid resuscitation is essential to restore hydration, improve perfusion, and stabilize the child's vital signs. While it's important to monitor urine output, initiating fluid resuscitation takes precedence in this situation. Notifying the healthcare provider can cause a delay in critical intervention, and waiting to reassess vital signs in 30 minutes can be detrimental in a child with severe dehydration and compromised hemodynamics.
5. 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.
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