An 8-year-old child with the diagnosis of meningitis is to have a lumbar puncture. What should the nurse explain is the purpose of this procedure?

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: A

Rationale: The correct recommendation to reduce the risk of SIDS in infants is to place them on their back to sleep. This sleeping position helps prevent the occurrence of SIDS by maintaining an open airway and reducing the risk of suffocation. Using a pacifier during sleep has also shown some protective effect against SIDS, but it is not as effective as placing the infant on their back. Having the infant sleep on their side is not recommended as it can increase the risk of accidental suffocation. Keeping the infant's room cool does not directly reduce the risk of SIDS.

Correct Answer: A

Rationale: The priority nursing action when a child with a suspected fracture is brought to the emergency department is to immobilize the affected limb. Immobilization helps prevent further injury until a fracture is confirmed or ruled out. Applying ice or elevating the limb may be necessary interventions but should come after immobilizing the limb. Checking the child's neurovascular status is important but should follow immobilization to ensure no further harm is done during the assessment.

Correct Answer: A

Rationale: The correct answer is to monitor for signs of infection. When a child is undergoing chemotherapy, their immune system is compromised, making them more susceptible to infections. Monitoring for signs of infection is crucial to promptly identify and treat any potential infections. Choices B, C, and D are incorrect because although monitoring for bleeding, dehydration, and pain are important aspects of care, the priority for a child receiving chemotherapy is to prevent and detect infections due to their increased vulnerability.

Correct Answer: B

Rationale: The correct answer is to limit screen time when preventing childhood obesity. Excessive screen time is associated with a sedentary lifestyle and can lead to increased consumption of unhealthy foods. Encouraging high-calorie snacks (choice A) contradicts the goal of preventing obesity. While fast food as an occasional treat (choice C) can be acceptable in moderation, it should not be encouraged as a preventive measure against obesity. Allowing the child to eat freely (choice D) without guidance can lead to overconsumption of unhealthy foods and contribute to obesity risk.