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A patient comes to the emergency department and tells the triage nurse that he is "having a heart attack." What is the nurse's top priority at this time?
Medulla Oblongata
The lowest region of the brainstem, controlling vital functions such as heart rate, breathing, and blood pressure.
Baroreceptor Reflexes
A mechanism by which the body maintains blood pressure, involving sensors that detect changes in blood pressure and trigger responses.
Heart Rate
The number of heartbeats per unit of time, typically expressed in beats per minute (bpm), indicating cardiovascular activity.
End-diastolic Volume
The volume of blood in the ventricles at the end of diastole, immediately before contraction.
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