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A&P chap 2

Jardins Pulmonary Function Measurements

Tidal Volume TV The amount of air inhaled and exhaled with each breath during quiet breathing. Average 500mL
Inspiratory reserve volume IRV The amount of air that can be forcibly inhaled beyond the TV. Average 3100mL
Expiratory reserve volume ERV The amount of air that can be forcibly exhaled after a normal TV. Average 1200mL
Residual volume RV The amount of air still in the lungs after a forced ERV. Average 1200mL
Vital Capacity VC The maximum volume of air that can be exhaled after a maximal inspiration. Average 4800mL
Inspiratory capacity IC The volume of air that can be inhaled after a normal exhalation. Average 3600mL
Functional residual capacity FRC The volume of air remaining in the lungs after a normal exhalation. Average 2400mL
Total lung capacity TLC The maximum amount of air that the lungs can accommodate. Average 6000mL
Obstructive lung disorder RV, TV and FRC are increased. VC, IC, IRV and ERV are decreased
Restrictive lung disorder VC, IC, RV, FRC, TV and TLC are decreased
Trouble getting air out Obstructive
Trouble getting air in restrictive
Created by: hkirkendall75