numerical: cardiac output

Question

If stroke volume is 70 mL and heart rate is 75 beats/min, what is cardiac output? (mL/min)

RankGuru · Accepted Answer

1. **Stroke Volume ($SV$)**: The volume of blood pumped out by one ventricle with each heartbeat (avg. $70 \ ml$).
2. **Heart Rate ($HR$)**: The number of beats per minute.
3. **Cardiac Output ($CO$)**: The total volume of blood pumped by each ventricle per minute.
4. **Formula**: 
   - $CO = SV 	imes HR$
5. **Calculation**:
   - $CO = 70 \ ml/beat 	imes 75 \ beats/min$
   - $CO = \mathbf{5250 \ ml/min}$ (approx. $5.25 \ L/min$).

Rank Guru

numerical: cardiac output

Select the correct option: