satisfy his oxygen demand while submerge? Justify your answer numerically (fresh air contains 20.94% O2

Question

Indiana Jones is being chase by villains to escape he grabs a straight bamboo shoot with a base that is 5 cm2 and 1.2 meter long and jumps into a stream. Luckily the stream is just deep enough that the bamboo shoot remains just above the surface. Indiana jones concentrates to slow down his respiratory rate to 10 breaths per minute and increases his tidal volume to 750 mls / breath. Indiana Jones restion VO2 is 220 ml O2/min and his VD is 150 ml. Can Indiana Jones satisfy his oxygen demand while submerge or will he be forced to surface and be caught by his foes?
Justify your answer numerically (fresh air contains 20.94% O2

Answer 1

While this question is from 8 years ago, it's still a good one. Without giving away the answer, you can calculate the resultant volume by subtracting dead space from tidal volume. That would be the per breath volume. To calculate the total volume over the course of 1 minute, multiply that volume by how many breaths over the course of 1 minute. You can then multiply that net/minute volume by the percentage of oxygen and see if the resultant answer is greater, equal to or less than Indiana's resting volume of oxygen consumption.