Understanding Stroke Volume: How Much Blood is Pumped Per Beat?

Stroke volume refers to the amount of blood that is pumped out of the heart per heartbeat or contraction. The normal stroke volume for a healthy adult at rest is approximately 70 milliliters (mL).

This value can vary based on factors such as an individual's size, fitness level, age, and physiological demands.

For a better representation of how much blood is pumped in one stroke volume, here are some examples:

- About 2 tablespoons of liquid.

- Enough blood to fill a small shot glass.