Which of the following assessments is critical when a patient is suspected of having a seizure?

When a patient is suspected of having a seizure, assessing the patient's airway is critical because seizures can lead to a compromised airway due to loss of muscle control and potential aspiration. After a seizure, a patient may be lethargic or unresponsive, which can further increase the risk of airway obstruction. Ensuring a clear airway is paramount to prevent any respiratory complications, such as hypoxia, which can result from inadequate oxygenation if the airway is obstructed.

While checking blood glucose levels, taking initial vital signs, and determining the time of onset are important components of a complete assessment, the immediate priority in the context of a seizure is ensuring that the airway is patent and that the patient is receiving adequate ventilation. This focus allows for timely intervention that can significantly affect the patient’s outcome.