Question

Volume of blood usually oxygenated per minute in the lungs of a person whose cardiac output is about $14$ lit/min and respiration rate is $20$/ min?

• A. $13720$ ml
• B. $14000$ ml
• C. $14280$ ml
• D. $280000$ ml

Answer 1

The correct option is D $280000$ ml

Total blood oxygenated per minute in the lungs can be expressed as :

Cardiac Output × Respiratory rate.

Cardiac Output = 14,000 ml/minute.

Respiratory Rate = 20 times/ minute.

Hence, 14,000 × 20 = 28,000 ml.

So, the correct option is '28,000 ml'.