During an assessment, what should be the first action if a patient is observed to be lethargic and reports not eating much?

In a situation where a patient is lethargic and reports not eating much, performing a blood glucose test is the most appropriate initial action. This is because lethargy can be a sign of hypoglycemia, particularly in pediatric patients, who can quickly develop low blood sugar if they are not eating adequately. By checking the blood glucose level, the healthcare provider can identify whether the child's lethargy is related to low blood sugar, which requires immediate intervention.

If blood glucose is low, prompt treatment can be initiated to stabilize the patient's condition. This is crucial to avoid potential complications such as seizures or loss of consciousness. Ensuring a clear understanding of the underlying cause of the lethargy allows for a targeted and effective response to the patient's needs.