If the stroke volume of an athlete is 100 ml and the heart beat rate is 82/min, what will be the cardiac output ?

Options

A. 8.5 L
B. 8 L
C. 8.3 L
D. 8.2 L

Answer

To calculate the cardiac output (CO) of an athlete, we can use the formula:

\[ \text{Cardiac Output (CO)} = \text{Stroke Volume (SV)} \times \text{Heart Rate (HR)} \]

### Step-by-Step Solution:

1. **Identify the Stroke Volume (SV)**:
- Given: Stroke Volume = 100 ml

2. **Identify the Heart Rate (HR)**:
- Given: Heart Rate = 82 beats per minute (bpm)

3. **Apply the Cardiac Output Formula**:
- Substitute the values into the formula:
\[ \text{CO} = \text{SV} \times \text{HR} = 100 \, \text{ml} \times 82 \, \text{bpm} \]

4. **Calculate the Cardiac Output**:
- Perform the multiplication:
\[ \text{CO} = 100 \times 82 = 8200 \, \text{ml/min} \]

5. **Convert the Cardiac Output to Liters**:
- Since the question asks for the answer in liters, convert ml to liters:
\[ 8200 \, \text{ml/min} = \frac{8200}{1000} \, \text{liters/min} = 8.2 \, \text{liters/min} \]

6. **Final Answer**:
- The cardiac output of the athlete is **8.2 liters/min**.