Which step should be taken if a patient is suspected of having a stroke?

Timing the onset of symptoms is crucial when a patient is suspected of having a stroke because the effectiveness of various treatments can be highly dependent on how quickly they are administered after the onset of symptoms. Strokes can occur in two main types: ischemic (caused by a blockage) and hemorrhagic (caused by bleeding). The timing is essential, particularly for ischemic strokes, as certain medications, like tPA (tissue Plasminogen Activator), are most effective when given within a specific timeframe from symptom onset, typically within the first 3 to 4.5 hours.

Recognizing the time of symptom onset helps medical personnel make informed decisions regarding treatment options and enhance the chances of minimizing lasting effects of the stroke. It also helps in assessing the urgency of the situation, which is essential when deciding the next steps in care and transport to an emergency medical facility.

The other actions listed do not hold the same level of importance in the immediate management of a stroke. Providing food and water can pose a risk of aspiration, administering aspirin may not be appropriate depending on the type of stroke, and using a defibrillator is relevant for cardiac arrest situations rather than stroke management.