Cardiac output means, the amount of blood pumped out in

Options

A. 1)one day
B. 2)one hour
C. 3)one minute
D. 4)one second

Answer

**Step-by-Step Solution:**

1. **Understanding Cardiac Output**: Cardiac output is defined as the amount of blood pumped by the left ventricle of the heart into the aorta per unit of time.

2. **Identifying the Time Interval**: The standard time interval for measuring cardiac output is typically in minutes. This means we need to find out how much blood is pumped in one minute.

3. **Calculating Cardiac Output**: Cardiac output can be calculated using the formula:
\[ \text{Cardiac Output (CO)} = \text{Stroke Volume (SV)} \times \text{Heart Rate (HR)} \]
Here, stroke volume is the amount of blood ejected by the heart with each beat, and heart rate is the number of beats per minute.

4. **Evaluating the Options**: The question provides four options:
- a) One day
- b) One hour
- c) One minute
- d) One second

Since we established that cardiac output is measured per minute, we can eliminate the options of one day, one hour, and one second.

5. **Conclusion**: The correct answer is option c) One minute, as this is the standard time interval used to define cardiac output.