the nurse is assessing an infant with pyloric stenosis which pathophysiological mechanism is the most likely consequence of this infants clinical pict
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Nursing Elites

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?

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. Following admission for cardiac catheterization, the nurse is providing discharge teaching to the parents of a 2-year-old toddler with tetralogy of Fallot. What instruction should the nurse give the parents if their child becomes pale, cool, and lethargic?

Correct answer: C

Rationale: If a child with tetralogy of Fallot becomes pale, cool, and lethargic, these symptoms may indicate a hypoxic episode or worsening condition. It is crucial to contact the healthcare provider immediately for further evaluation and management to ensure the child's safety and well-being. Option A is incorrect because electrolyte solution intake is not the immediate action needed for these symptoms. Option B is incorrect as positioning alone may not address the underlying issue. Option D is incorrect as providing a quiet time is not appropriate if the child is experiencing concerning symptoms that require prompt medical attention.

3. What information should be reinforced with the parents of a school-aged child about Reye's syndrome?

Correct answer: C

Rationale: The correct answer is C: 'Avoid giving any medication containing aspirin during a viral illness.' It is crucial to advise parents to avoid giving any medication containing aspirin during a viral illness to prevent Reye's syndrome. Reye's syndrome is a rare but serious condition linked to the use of aspirin during viral illnesses in children and teenagers. Choices A, B, and D are incorrect because vaccinating against Reye's syndrome is not applicable as there is no specific vaccine for it, keeping the child at home for 2 days after symptoms appear is not a preventive measure for Reye's syndrome, and avoiding citrus juices is not directly related to the prevention of Reye's syndrome.

4. A 16-year-old male client who has been treated in the past for a seizure disorder is admitted to the hospital. Immediately after admission, he begins to have a grand mal seizure. Which action should the nurse take?

Correct answer: B

Rationale: During a grand mal seizure, the priority action for the nurse is to ensure the safety of the client. Observing the client carefully allows the nurse to monitor the seizure activity, the client's breathing, and any signs of distress without interfering with the seizure process. Restraining the client or placing objects in the mouth can lead to injury and should be avoided. Calling a CODE is not appropriate for a seizure as it is a normal response to the client's condition.

5. A 2-year-old child with a history of frequent ear infections is brought to the clinic by the parents who are concerned about the child’s hearing. What should the nurse do first?

Correct answer: C

Rationale: The most appropriate initial action for the nurse to take is to inspect the child's ears for drainage. This step can provide immediate information on the presence of infection or fluid, which could be impacting the child's hearing. By assessing for drainage, the nurse can gather valuable initial data to determine the next course of action, such as further evaluation or treatment. Asking about speech development or referring to an audiologist would be secondary steps after assessing the physical condition of the ears. Performing a hearing test would also be premature without first examining the ears for any visible issues.

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