If a person's heart is pumping 5000 ML of blood in 1 minute and the heart rate is 50 beats per minute what is the cardiac output

1 answer

Cardiac output (CO) is calculated using the formula:

\[ \text{Cardiac Output} = \text{Stroke Volume} \times \text{Heart Rate} \]

Where:

  • Stroke Volume (SV) is the amount of blood pumped by the heart in one beat.
  • Heart Rate (HR) is the number of heartbeats per minute.

From your provided data:

  • The total volume of blood pumped in 1 minute is 5000 mL (which is the cardiac output).
  • The heart rate is 50 beats per minute.

To find the stroke volume:

\[ \text{Stroke Volume} = \frac{\text{Cardiac Output}}{\text{Heart Rate}} \]

Substituting the given values:

\[ \text{Stroke Volume} = \frac{5000 , \text{mL}}{50 , \text{beats/min}} = 100 , \text{mL/beat} \]

So, the cardiac output is already provided as 5000 mL/min.

In summary:

  • Cardiac Output = 5000 mL/min
  • Stroke Volume = 100 mL per beat
  • Heart Rate = 50 beats per minute