Pharmacy Curriculum Outcomes Assessment (PCOA) Practice Exam

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The volume of air moved in and out of the lungs with each normal breath is known as the:

Tidal volume
Inspiratory capacity
Vital capacity
Residual volume

The correct answer is: Tidal volume

Tidal volume is the amount of air that is moved in and out of the lungs during normal breathing. This is different from other options such as inspiratory capacity, which is the maximum amount of air that can be inhaled after a normal exhalation, and vital capacity, which is the maximum amount of air that can be exhaled after a maximum inhalation. Residual volume is the amount of air that remains in the lungs after a maximum exhalation. Therefore, tidal volume is the most appropriate answer as it specifically refers to the volume of air moved during normal breathing.