A registered nurse is teaching nursing students about cardiac output. Which statement indicates effective learning by the student nurse?
1. "Cardiac output is the amount of blood that the heart pumps out of the left ventricle."
2. "Cardiac output is increased in heart failure."
3. "Cardiac output is unvaried by body size."
4. "Adrenergic stimulation slows heart rate and cholinergic stimulation raises heart rate."
1
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