Your breathing rate is 12 breaths/minute;your tidal volume is 500 mL;your vital capacity is 4700 mL;and your dead air space is 150 mL.Your alveolar ventilation rate is __________ mL/min.
A) 2,400
B) 3,600
C) 4,200
D) 5,600
E) 6,400

Question

Quizplus · Accepted Answer

Alveolar ventilation rate (AVR) is the volume of air exchanged between the atmosphere and the alveoli per minute. It is calculated as:

AVR = (tidal volume - dead space) x respiratory rate

AVR = (500 mL - 150 mL) x 12 breaths/minute
AVR = 4,200 mL/minute

Therefore, the answer is C) 4,200.

Your Breathing Rate Is 12 Breaths/minute;your Tidal Volume Is 500