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A&P chap 2
Jardins Pulmonary Function Measurements
| Question | Answer |
|---|---|
| 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 |