HESI RN
HESI Pediatrics Practice Exam
1. The healthcare provider is assessing an infant with pyloric stenosis. Which pathophysiological mechanism is the most likely consequence of this infant's clinical picture?
- A. Metabolic alkalosis.
- B. Respiratory acidosis.
- C. Metabolic acidosis.
- D. Respiratory alkalosis.
Correct answer: A
Rationale: Pyloric stenosis leads to obstruction at the outlet of the stomach, causing frequent vomiting and loss of stomach acids. This results in a loss of hydrochloric acid and hydrogen ions, leading to metabolic alkalosis due to an increase in serum bicarbonate levels. Therefore, the correct answer is metabolic alkalosis. Choice B, respiratory acidosis, is incorrect as it is not typically associated with pyloric stenosis. Choice C, metabolic acidosis, is incorrect because the loss of stomach acids in pyloric stenosis leads to metabolic alkalosis, not acidosis. Choice D, respiratory alkalosis, is also incorrect as it is not the usual consequence of pyloric stenosis.
2. Which statement by a school-aged client going to summer camp indicates the best understanding of the mode of transmission of Lyme disease?
- A. I'll cover my mouth with a wet cloth if there's too much dust blowing.
- B. Cuts and scrapes need to be washed out and covered right away.
- C. I'm not going to swim where the water is standing still or feels too hot.
- D. I have to wear long sleeves and pants when we're hiking around the pond.
Correct answer: D
Rationale: The correct answer is D. Wearing long sleeves and pants is an effective measure to prevent tick bites, which can transmit Lyme disease. Ticks are commonly found in wooded areas and tall grass, so covering exposed skin helps reduce the risk of tick bites and subsequently lowers the risk of contracting Lyme disease. Choices A, B, and C do not directly address the mode of transmission of Lyme disease. Option A pertains to respiratory protection against dust, Option B focuses on wound care, and Option C relates to water safety, none of which are directly related to preventing Lyme disease transmission.
3. During a well-baby exam, a nurse finds that a 2-month-old's right testicle is not descended into the scrotum, but the left one is palpable. What should the nurse do?
- A. Ask if the right testis has been seen in the scrotum before
- B. Address potential concerns about future fertility
- C. Schedule an ultrasound to confirm the position of the testicle
- D. Prepare to obtain a urine specimen for culture
Correct answer: A
Rationale: The correct answer is to ask if the right testis has been seen in the scrotum before. The initial step in managing an undescended testicle is to determine if it has been previously observed in the scrotum or if this is a new finding. This information is crucial in deciding the next course of action. Choice B is incorrect because addressing future fertility concerns comes after confirming the status of the testicle. Choice C is unnecessary at this stage as the first step is to gather more history. Choice D is unrelated to the issue described and is not indicated in this scenario.
4. The parents of a 4-year-old child who has just been diagnosed with celiac disease are being educated by a healthcare provider. Which statement by the parents indicates a correct understanding of the condition?
- A. We can give our child small amounts of gluten occasionally
- B. We need to avoid giving our child foods containing wheat, barley, and rye
- C. We should limit our child’s intake of dairy products
- D. Our child will need to take gluten-free supplements
Correct answer: B
Rationale: Choice B is the correct answer because for individuals with celiac disease, a strict gluten-free diet is essential for managing the condition. Foods containing wheat, barley, and rye must be completely avoided to prevent adverse reactions and damage to the intestines. This dietary restriction is crucial to ensure the child's health and well-being in managing celiac disease effectively. Choices A, C, and D are incorrect because giving small amounts of gluten occasionally, limiting dairy products, or taking gluten-free supplements are not sufficient measures to manage celiac disease. Complete avoidance of gluten-containing foods is necessary to prevent complications.
5. The healthcare provider is preparing to suture a 10-year-old child with a lacerated forehead. Both parents and a 12-year-old sibling are present at the child's bedside. Which instruction best supports family involvement?
- A. While waiting for the healthcare provider, only one visitor may stay with the child.
- B. All of you should leave while the healthcare provider sutures the child's forehead.
- C. It is best if the sibling goes to the waiting room until the suturing is completed.
- D. Please decide who will stay when the healthcare provider begins suturing.
Correct answer: D
Rationale: Involving the family members in deciding who will stay when the healthcare provider begins suturing supports family involvement and helps reduce anxiety for the child. This approach respects the family's dynamics and preferences, promoting a supportive environment during the procedure.
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