HESI RN
HESI Pediatric Practice Exam
1. 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.
2. 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.
3. The infant scheduled for reduction of intussusception passes a soft-formed brown stool the day before the scheduled procedure. Which intervention should the nurse implement?
- A. Instruct the parents that the infant needs to be NPO.
- B. Notify the healthcare provider of the passage of brown stool.
- C. Obtain a stool specimen for laboratory analysis.
- D. Ask the parents about recent changes in the infant's diet.
Correct answer: B
Rationale: Notifying the healthcare provider is crucial in this situation because the passage of a brown stool may indicate the resolution of intussusception. It is important to keep the healthcare provider informed about any changes in the infant's condition to ensure appropriate care and management. Instructing the parents that the infant needs to be NPO (nothing by mouth) is not necessary based on the passage of brown stool. Obtaining a stool specimen for laboratory analysis is not indicated in this scenario since the brown stool is likely a positive sign. Asking about recent changes in the infant's diet is not the priority at this moment as notifying the healthcare provider takes precedence.
4. A 2-year-old boy begins to cry when the mother starts to leave. What is the nurse's best response in this situation?
- A. Let me read this book to you.
- B. Two years old usually stop crying the minute the parent leaves.
- C. Now be a big boy. Mommy will be back soon.
- D. Let's wave bye-bye to mommy.
Correct answer: D
Rationale: Waving bye-bye to mommy helps the child understand that the separation is temporary.
5. The caregiver is providing discharge instructions to the parents of a 6-month-old infant who was hospitalized for bronchiolitis. Which statement by the parents indicates a correct understanding of the instructions?
- A. We should keep our baby away from people with colds
- B. We should continue giving the prescribed medication even if our baby seems better
- C. We should avoid giving solid foods to help with recovery
- D. We can place our baby to sleep on their back to help with breathing
Correct answer: A
Rationale: Keeping the infant away from people with colds is crucial to prevent the spread of respiratory infections, especially for infants recently hospitalized with bronchiolitis. This precaution helps protect the baby from further illnesses and promotes recovery. The other choices are incorrect because it is important to complete the prescribed medication course even if the baby seems better to ensure the infection is fully treated (Choice B). Solid foods are usually introduced around six months of age, so avoiding them entirely may not be necessary (Choice C). Placing the baby to sleep on their back is a safe sleep practice to prevent sudden infant death syndrome (SIDS) but may not directly help with breathing in the context of bronchiolitis (Choice D).
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