Term
| pulmonary function test interpretation what are we most interested in? |
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Definition
| percent of predicted bc normals vary for everyone |
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Term
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Definition
| normal around 3-4 Liters, decreased in obstructive disease |
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Definition
| greater than 75% or 80% of predicted |
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Term
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Definition
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Definition
| 60-75% of predicted FVC (force vital capacity) |
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Definition
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Definition
| less than 50% of predicted FVC |
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Term
| if FEV1/FVCi ratio s normal... |
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Definition
| look at total lung capacity, probably a restrictive process, if ltc is normal probably no problem |
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Term
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Definition
| 1. FEV1 2.FEV1/FVC ratio 3. FVC 4. Flow volume curve 5. make sure everything matches, results w presentation 6. MVV 7. diffusing capacity |
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Term
| evaluating the flow volume curve |
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Definition
| does it compare to the rest of the results? does it match? |
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Term
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Definition
| low FEV1 and low FEV1/FVC ratio |
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Term
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Definition
| low FEV1 and elevated FEV1/FVC ratio |
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Term
| obstructive and restrictive examples |
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Definition
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Term
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Definition
| looks at overall pulmonary function including muscle strength, have pt breath rapidly and deeply over 12 sec interval, should be 30-40x FEV, if not: muscular disorder or neurological functioning issue |
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Term
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Definition
| affected by increasing body size, as you age starts to go down, increases during exercise and higher in supine and sitting positions, typically only do this if restrictive disease is present. if decreased thing parenchymal disease (anemia, pulmonary artery hypertension, or chronic thromboembolic disease) , if normal think extraparenchymal disease (obesity, neuromuscular, deformity in chest wall, large pleural effusion) |
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Term
| spirometry interpretation chart |
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Definition
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Term
| peak expiratory rate or peak flow |
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Definition
| maximum flow rate generated during a forced expiratory maneuver, can be maintained for 10 sec, useful for asthma, different for everyone, need to obtain a baseline |
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Term
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Definition
| a plot of airflow over time, rapid, forceful, and complete expiration from total lung capacity to residual volume, can be done before and after bronchodialators |
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Term
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Definition
| maximum amount volume of air exhaled from the lungs after a maximum inspiration, do for restrictive lung disease, useful in confirming and predicteing hyperventilation |
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Term
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Definition
| this is the volume exhaled during the first phase of an FVC maneuver, 1st second |
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Term
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Definition
| if you want to look to see if your patient has a problem with the smaller airways. look between 25% and 75%, and you measure that volume. This is the mean rate of airflow over the middle half of the forced vital capacity between 25% and 75% of the forced vital capacity. This is sensitive to small airway obstruction. |
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Term
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Definition
| helium dilution, nitrogen washout, get total lung capacity, functional residual capacity, and the residual volume |
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Term
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Definition
| these are the plot of the air flow versus lung volumes. These can be used in characterizing different patterns of airflow obstruction |
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Term
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Definition
| This is the amount of air inhaled or exhaled with each breath at normal respiratory rate and effort |
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Term
| inspiratory reserve volume |
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Definition
| the amount of additional air that can be drawn into the lungs after a normal respiration |
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Term
| expiratory reserve volume |
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Definition
| amount of air that can be forcibly exhaled after a normal tidal volume test evaluation is done |
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Term
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Definition
| the amount of air left in the lungs after a forced exhalation |
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Term
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Definition
| the maximum amount of air that can be contained in the lung after a maximum inspiratory effort. vital capacity plus the residual volume |
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Term
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Definition
| the amount of air that can be expired after a maximum inspiration |
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Term
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Definition
| maximum amount of air that can be inspired after a normal expiration |
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Term
| funcional residual capacity |
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Definition
| volume of air remaining in the lungs after a normal tidal volume expiration |
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Term
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Definition
| asthma, COPD, emphysema, chronic bronchitis, cystic fibrosis-- coal miner's long |
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Term
| restrictive lung diseases |
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Definition
| the pneumonitis; the pneumoconiosis, other than coal miner's long; congestive heart failure; sarcoidosis; pulmonary fibrosis; thoracic deformities |
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