Pediatrics HESI 2023

Correct Answer: B

Rationale: The primary purpose of a lumbar puncture is to obtain a sample of cerebrospinal fluid for analysis. This sample helps in diagnosing conditions such as meningitis by evaluating the presence of pathogens or abnormalities in the cerebrospinal fluid. Measuring the pressure of cerebrospinal fluid (Choice A) is not the main objective of a lumbar puncture, although it can be done during the procedure. Relieving intracranial pressure (Choice C) is not the direct purpose of a lumbar puncture, as other interventions are typically used for this purpose. Assessing the presence of infection in the spinal fluid (Choice D) is related to the overall goal of obtaining a sample for analysis, making it a secondary outcome of the procedure.

Correct Answer: B

Rationale: Seizures are a common complication in children with high fever and altered mental status, indicating a risk of febrile seizures. While vomiting can occur with altered mental status, seizures are of higher concern due to the association with febrile illnesses in children. Combativeness may be a concern in some altered mental status cases but is not as common as seizures. Respiratory distress, although important, is not the primary concern in this scenario given the symptoms presented.

Correct Answer: A

Rationale: The most important nursing intervention for a child with leukemia receiving chemotherapy is to monitor for signs of infection. Chemotherapy suppresses the immune system, putting the child at a higher risk of developing infections. Early detection and prompt treatment of infections are crucial to prevent complications and improve outcomes. Monitoring for signs of bleeding (choice B), dehydration (choice C), and pain (choice D) are also important aspects of care, but in this scenario, the priority is to prevent and manage infections due to the compromised immune system.

Correct Answer: B

Rationale: The correct answer is B: Paroxysmal abdominal pain. Colic in infants is characterized by paroxysmal abdominal pain, leading to excessive crying and fussiness. It is not caused by inadequate peristalsis (Choice A), an allergic response to certain proteins in milk (Choice C), or a protective mechanism designed to eliminate foreign proteins (Choice D). Understanding that colic is primarily associated with abdominal pain helps healthcare providers provide appropriate care and support to parents dealing with colicky infants.

Correct Answer: B

Rationale: During a vaso-occlusive crisis in sickle cell anemia, the priority nursing intervention is administering pain medication. Pain management is crucial to alleviate the intense pain experienced by the child. While administering oxygen can help improve oxygenation, it is not the most critical intervention during a vaso-occlusive crisis. Monitoring fluid intake is important for overall care but is not the immediate priority during a crisis. Encouraging physical activity is contraindicated during a vaso-occlusive crisis as it can worsen the pain and the crisis itself.