A person with a tidal volume of 450 mL, a vital capacity of 4,000 mL, and a residual volume of 1,000 mL would have a potential total lung capacity of
A) 1,450 mL.
B) 4,000 mL.
C) 4,450 mL.
D) 5,000 mL.
E) 5,450 mL.

Question

Quizplus · Accepted Answer

Total lung capacity is the sum of vital capacity and residual volume. 
Total lung capacity = Vital capacity + Residual volume 
Total lung capacity = 4,000 mL + 1,000 mL 
Total lung capacity = 5,000 mL. 
Therefore, the potential total lung capacity for a person with a tidal volume of 450 mL, a vital capacity of 4,000 mL, and a residual volume of 1,000 mL would be 5,000 mL.

A Person with a Tidal Volume of 450 ML, a Vital