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Lab 10 quiz
| Question | Answer |
|---|---|
| formula used to find lung function | FEV1/FVC x 100 |
| if you're lung function is 80% what does that mean | its normal |
| if you're lung function is less than 80% what does that mean | not normal possible obstruction |
| What does FEV1 stand for | forced expiratory volume of 1 second |
| FVC | forced vital capacity |
| TV | tidal volume |
| IRV | inspiratory reserve volume |
| ERV | expiratory reserve volume |
| RV | residual volume |
| VC | vital capacity |
| IC | inspiratory capacity |
| FRC | functional residual capacity |
| TLC | total lung capacity |
| amount of air inhaled/exhaled in one breath | tidal volume |
| typical TV value | 500 ml |
| amount of air in excess tidal inspiration that can be inhaled with max. effort | inspiratory reserve volume |
| typical IRV value | 3000 ml |
| amount of air in excess of tidal expiration that can be exhaled with maximum effort | expiratory reserve volume |
| typical ERV value | 1200 ml |
| amount of air remaining in the lungs after max. expiration that keeps the alveoli inflated between breaths | residual volume |
| typical RV value | 1200 ml |
| amount of air that can be exhaled with max effort after maximum inspiration | vital capacity |
| typical VC value | 4700 ml |
| how to find VC | ERV + TV + IRV |
| max amount of air that can be inhaled after a normal tidal expiration | Inspiratory capacity |
| typical IC value | 3500 ml |
| how to find IC | TV + IRV |
| amount of air remaining in the lungs after a normal tidal expiration | functional residual capacity |
| typical FRC value | 2400 ml |
| how to find FRC | RV + ERV |
| max amount of air the lungs can contain | Total lung capacity |
| typical TLC value | 5900 ml |
| how to find TLC | RV + VC |
| what happens to youre respiratory volumes and capacites when you exercise | TV increases, IRV/ERV decreases, RV unchanged, VC unchanged, FRC decreases, TLC unchanged, IC increases |
| what increases during exercise | respiratory rate and minute ventilation (VE) = total volume of air you breath in and out per minute |
| taking in more air then you need | hyperventilation |
| taking in less air than you need | hypoventilation |
| how to calculate minute ventilation | RR x TV |
| how to calculate alveolar ventilation | RR x (TV-DS) |
| what is the partial pressure of oxygen in normal ventilation | 105 mmHg |
| what is the dead space in normal ventilation | 150 |
| describe hypoventilation | shallow breathing and more breaths |
| partial pressure of oxygen in hypoventilation | 60 mmHg |
| dead space in hypoventilation | 150 ml |
| what accumulates in the blood during hypoventilation | CO2 |
| what is the partial pressure of oxygen in hyperventilation | 120 mmHg |
| describe hyperventilation | few breaths but very deep |
| what accumulates in the blood during hyperventilation | oxygen |
| did vital capacity change with exercise? why or why not | vital capacity remains unchanged because the lungs cannot expand more because of exercise |
| did tidal volume change between rest and exercise | yes it incresed because our bodies need more ox when we exercise |
| does IRV and ERV change during exercise | yes they increase because tidal volume takes up more space |
| did the total minute volume increase or decrease during exercise | it increased because both the respiratory rate and tidal volume increased |
| what is residual volume | the amount of air left in the lungs after max. expiration |
| what is the difference between total lung capacity and vital capacity | total lung capacity includes residual volume and vital capacity doesnt |
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