spc
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Direct spirometry | show 🗑
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| Indirect spirometry | show 🗑
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| show | volume
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| show | combination of one or more volumes
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| Primary lung volumes? | show 🗑
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| Lung capacities? | show 🗑
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| show | VT
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| Amount of air that can be forcibly inhaled past a normal VT breath? | show 🗑
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| Amount of air that can be forcibly exhaled past a normal VT breath? | show 🗑
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| show | RV
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| show | IC
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| Amount of air that can be exhaled after a maximal inspiration, VT+ERV+IRV= | show 🗑
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| Amount of air in the lungs after a maximum inspiration, RV+VT+IRV+ERV= | show 🗑
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| Amount of air in the lungs after a normal expiration, ERV+RV= | show 🗑
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| Dont do spirometry when? | show 🗑
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| SVC > FVC? | show 🗑
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| show | gas dilution(open or closed), body plethysmography
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| SVC and FVC accuracy is? | show 🗑
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| Indirect spirometry accuracy is? | show 🗑
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| Gas dilution uses what principle? | show 🗑
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| By having a known gas concentration at the start and end of a gas dilution test, we can calculate? | show 🗑
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| If air is trapped in the lungs(emphysema) gas dilution techniques will? | show 🗑
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| show | no difference, nitrogen is more common due to helium requiring a correction factor for tissue helium
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| Open circuit? | show 🗑
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| What is the clinical significance of a patient who takes a long time to wash out? | show 🗑
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| show | 3-4 minutes
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| Closed circuit? | show 🗑
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| show | long procedure, leaks, slow lung units, non communicating lung units cause an underestimation of FRC
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| Some patients may take longer to reach equilibration with the HE mixture, this may indicate? | show 🗑
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| Body plethysmography? | show 🗑
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| The body box measures all the gas in the patients chest, so if higher FRC measured than with a gas dilution technique this indicates? | show 🗑
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| What is PVM? | show 🗑
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| What is PFM? | show 🗑
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| Your pt's FEF 25% 75% is below predicted, what does this indicate? | show 🗑
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| show | medium to small airways, later in expiratory maneuver, normal is 4-5 l/sec,<80% pt on way to developing airway disease
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| FEF 200-1200? | show 🗑
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| Your pt's FEF 200-1200 is below predicted, what does this indicate? | show 🗑
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| What is the most negative pressure generated with inspiratory effort called? | show 🗑
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| MIP/NIF is used for? | show 🗑
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| show | <-60 (-61,-62,-63, etc...)
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| If pt has an abnormal MIP what does this indicate? | show 🗑
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| What is the greatest positive pressure that can be generated with expiration called? | show 🗑
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| MEP is used for? | show 🗑
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| show | 80-100
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| A pre and post bronchodilator study is used to asses? | show 🗑
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| Pre and post studies are indicated when? | show 🗑
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| Normal % predicted TLC | show 🗑
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| Normal % predicted FRC | show 🗑
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| FEV1/FVC < 80% = | show 🗑
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| FVC < 80% predicted = | show 🗑
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| show | restrictive
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| show | air trapping
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| American Thoracic Society (ATS) standards require all lung volumes be reported at? | show 🗑
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| show | obstruction
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| Reduced peak flow= | show 🗑
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| show | restriction
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| show | A 3 liter super syringe is normally used, Different flow rates are used, a rotary pump or rotometer may be used, is required by ATS guidelines, done daily
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| What study is indicated for subjects who have normal spirometry but periodic wheezing or SOB? | show 🗑
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| show | causes an acute temporary obstruction via inhalation or methacholine or histamine, determines if pt has hyper reactive airways, decrease in FEV1 of >20%= positive result
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| show | pre and post bronchodilater study, an increase in FEV1 > 12% indicates positive response, used to determine if obstructive disease is reversibe
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| Peak flow monitoring is used too? | show 🗑
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| All PFM's use? | show 🗑
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| Severe obesity will? | show 🗑
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| show | obstruction
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| Tall & skinny loops indicate | show 🗑
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| show | obstruction, early is larger airways, later in smaller airways
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| show | 3 attempts within 5% or 200ml, do not exceed 8 attempts
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| show | done by the computer, used to correct for a pt's late start, cannot exceed 5% or 150ml
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| show | Pt room, bedside, physician's office, PFT lab, outpatient clinic, hospital
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Created by:
juialynn92
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