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DU PA Pulm testing
Duke PA Pulmonary Function Testing and Sleep Studies
Question | Answer |
---|---|
noninvasive method of monitering SaO2 | oximetry |
Fetal oxygen saturation monitoring | FSpO2 |
Normal oxygen saturation for baby in the womb is between 30% and ___% | 70 |
the amount of light absorbed by oxygen-saturated hemoglobin is measured by the sensor to determine saturation levels | oximetry |
a machine that can measure air volumes | spirometer |
in spirometry values greater than __% of predicted values are considered normal | 80 |
most labs use _____ to measure diffusing capacity because of its great affinity for hemoglobin | carbon monoxide |
amount of air that can be forcefully expelled from a maximally inflated lung position | FVC |
volume of air expelled during the first second of FVC | FEV1 |
in restrictive lung disease ______ should be measured | FEV1/FVC ratio |
maximal rate of air flow through the pulmonary tree during forced expiration | MMEF (maximal midexpiratory flow) |
MMEF volumes are lower than expected in | obstructive pulmonary disease |
MMEF volumes are normal in | restrictive pulmonary disease |
maximal volume of air a patient can breath in and out during 1 minute | MVV (maximal volume ventilation) |
MVV is less than the predicted value in | both obstructive pulmonary disease and restrictive pulmonary disease |
volume of air inspired and expired with each normal respiration | TV (tidal volume) |
maximal volume of air that can be inspired from end of normal inspiration | IRV (inspiratory reserve volume) |
maximal volume of air that can be exhaled after normal exhalation | ERV (expiratory reserve volume) |
volume of air remaining in the lungs following forced expiration | RV (residual volume) |
maximal volume of air that can be inspired after normal expiration | IC (inspiratory capacity) |
amount of air left in lungs after normal expiration | FRC (functional residual capacity) |
maximal amount of air that can be expired after maximal inspiration | VC (vital capacity) |
volume to which lungs can be expanded with greatest inspiratory effort | TLC (total lung capacity) |
volume of air inhaled and exhaled in a minute | MV (minute volume) |
Part of VT that does not participate in alveolar gas exhange | dead space |
Portion of air flow curve most affected by airway obstruction | FEF (forced expiratory flow) |
flow rate of inspired air during maximum inspiration. indicates large airway disease | PIFR (peak inspiratory flow rate) |
maximum airflow rate during forced expiration | PEFR (peak expiratory flow rate) |
typically used to detect the presence of hyperactive airway disease | methacholine or histamine challenge |
highlighted by perialveolar inflammation followed by fibrosis | interstitial lung disease |
Patients with COPD can be expected to have increased ______ | RV and ERV |
these patients have reduced lung volumes, inpaired diffusing capacity, and exercise-induced hypoxemia | inhalant pneumonitis (farmer's lung, miner's lung) |
post-pneumonectomy no changes in ______ would be expected | air flow rates |
What studies are indicated in any person who snore's excessively; experiences narcolepsy, excessive daytime sleeping, or insomnia | sleep studies |
includes insomnia, sleep apnea, narcolepsy and RLS | dyssomnia |
includes sleep walking, sleep talking, sleep terrors, REM disorders | parasomnia |
the most common type of sleep apnea | obstructive |
obstructive sleep apnea is caused by relaxation of the | posterior pharyngeal muscles |
____ sleep apnea is characterized by a simple cessation of breathing | central |
frequent and irriversible need for sleep during daytime hours | narcolepsy |
acute sensation of discomfort during periods of inactivity making sleep difficult | restless leg syndrome |
causes patients to act out their dreams, these patients can vividly recall dreams | REM disorders |
inability to sleep | insomnia |
most common form of sleep disorder | insomnia |
in spirometry ____ impairments are defined by a low FEV1 and a low FEV1/FVC% | obstructive |
in spirometry _____ impairments are characterized by a proportional decrease in FEV1 and FVC, leading to a preserved FEV1/FVC% | restrictive |
_____ impairments will have a flattened flow-volume loop | obstructive |
disease associated with increased elastic recoil | lung fibrosis |
diseases associated with increased elastic recoil are associated with _____ FRC | decreased |
disease associated with decreased elastic recoil | emphysema |
diseases associat with decreased elastic recoil are associated with _____ FRC | increased |
extrinsic cause of restrictive lung disorder | obesity, pleural effusion |
Pulse oximetry is not accurate in using to titrate O2 therapy in | advanced COPD |
pulse oximetry of <___% at rest required for O2 therapy | 88 |
low DLCO with restriction can be seen in | interstitial lung disease, pneumonitis |
low DLCO with obstruction can be seen in | emphysema, cystic fibrosis, bronchiolitis |
low DLCO with normal spirometry can be seen in | anemia, pulmonary vasculitis, early interstitial lung disease |
This test records several body functions during sleep | polysomnography |