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39 Cards in this Set
- Front
- Back
normal value for SVC
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50-70 ml/kg of ideal body weight
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SVC should be with ___ mL of FVC
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200
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normal % for FVC
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80% predicted or above
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normal % for FEV1
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75%-85% predicted or above
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what is a normal % for the FEV1/FVC ratio?
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75%-85% of predicted
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Q. What 2 #'s can be multiplied together to get an estimate of MVV?
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FEV1x35
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Q. normal % predicted for TLC
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80% or above
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Q. RV/TLC normal ratio
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20%-35%
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Q. normal values for Gaw?
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.42 - 1.67 L/Sec/cm H20
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Q. SGaw normal values
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<.15 - .20 L/Sec/cm H20
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Q. VT equal to _ to _ ml/kg of ideal body weight.
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5-7
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Q. normal minute volume (Ve) is _ to _ L/min
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6-10
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Q. normal MIP
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-60 or greater
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Q. body plethysmography is used to determine...
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thoracic gas volume (VTG)
airway resistance (Raw) airway conductance (Gaw) |
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Q. normal # of breaths/min
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12-20
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Q.what is the maximum # of FVC attempts before you should give up?
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8
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Q.When performing a SVC maneuver, the subjuect must be free from any acute illness for at least the past ___ weeks.
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3
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Q.what is the total lung capacity of a healthy young male?
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6.0L
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Q.equipment should be calibrated to within +/- ___%
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3 or 50ml, which ever is greater.
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Q.Charles Law
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pressure is constant and volume and temp are directly proportional
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Q.When measuring MVV, how many maneuvers should be done?
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2
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Q.When measuring MVV, the two maneuvers should be within __% of each other.
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10%
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Q.to check validity of MVV, compare it to FEV1. You do this by multiplying FEV1 by __.
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35
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Q.In an acceptable FVC the best test is...
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the maneuver with the largest sum of FVC and FEV1.
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Q.MVV mAy be normal in patients with ___ disease
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restrictive
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Q.In pre-post bronchodilator studies reversibility is considered significantly in creased if...
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greater than 12% and 200 ml for either FEV1 or FVC or changes in FEF 25%-75% of 20-30%
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Q.there should be a minimum interval of __ minutes between pre and post bronchodilator studies
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15
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Q.What is a significant improvement in SGaw in a pre-post bronchodilator study?
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35%
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Q.the 2 subdivisions of vital capacity (VC) are
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inspiratory capacity (IC) and Expiratory reserve volume (ERV)
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Q.healthy patients can exhale __% of FVC in one second
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80%
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Q.in a normal adult, the % of total volume exhaled during FEV1 is
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75%-85%
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Q.normal FEV1/FEV (FEV1%) for a healthy adult is
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75%-85%
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Q.another term for peak expiratory flow (PEF) is
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FEFmax
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Q.how many acceptable maneuvers do you need for an acceptable VC?
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2, volumes within 150ml
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Q.Healthy young adults have a predicted MVV of about ___ L/min
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170
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Q.FEV1% is also commonly written as
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FEV1/FVC
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Q.in healthy individuals, the FVC equal which other measurement?
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VC
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Q.a decreased FEV1/FVC ratio is the hallmark of ___ disease
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obstructive
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Q.the F-V loop is extremely useful in diagnosing what size airway abnormalities?
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large
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