Expiratory reserve volume is the amount of extra air above normal that you exhale during a forceful breath out. ERV is part of the data gathered in pulmonary function tests used to diagnose ...
The Amount of Air Moved In and Out While Breathing srdjan111 / iStock / Getty Images Medically reviewed by Sanja Jelic, MD Tidal volume (Vt or TV) is the amount of air you move through your lungs each ...
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