Spirometry Lab
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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| Define FVC | Force Vital Capacity=Ttal volume of air that can be exhaled forcefull from TLC
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| Describe FVC | Take the deepest breath you can in and blast it out as fast and long as you can
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| List the information obtained during a FVC maneuver | IRV=3000 ML
VT=500ML OR 5-7 KG OF IBW
ERV=1200
RV: NOT MEASURED 1200 ML
IC=3500
VC=4700
TLC=NOT MEASURED 6L
FRC=NOT MEASURED 2400 ML
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| What are the normal values for each volume and capacity | IRV=3000 mL
Vt=500 mL or 5-7 kg of IBW
ERV= 1200 mL
RV= 1200 mL
IC=3500 mL
TLC= 6L
VC= 4700 mL
FRC= 2400 mL
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| List what the characters you would see if you had a obstructive disease | Flow reduced
FEV1> 75% pred (could be low in both)
FEV1%=<78% obstructive -some text say 80%
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| List what the characteristics you would see in Restrictive disease | FEV1= may be low >75%
FEV1%= NORMAL
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| What is the formula for FEV1% | FEV1/FEV
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| What are the most common test to determine where a disease is restrictive or obstructive? | FEV, FEV1, & FEV1%
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| What is measure to determine lung functions | pressure, flow, volume
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| What is the predicted values of the FEF of the large airways | 200-1200
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| Of the three air ways which is the most effort dependent | Large Airways
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| Which Of the airways should show normal values of 25-75% | Medium airways
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| which of the airways is the least effort dependent | Small (smallest)
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| What are the normal values of FVC | 80-120-normal
70-80-mild
50-70-moderate
less than 50- severe
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| Why do we use spirometry | Simple
Reproducible
Office Based
Easy to interprety
Cheapest and most reliable
ATS stands
Diagnose obstruction and rule out restrictive
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| Describe the various settings and ways to obtain a PFT | Health Screen
Doctors Office
Hospital bedside
PFT
Spirometry
Plethysmography
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| What are some acceptable test when producing reproducibility | Biggest two test within 150-200 mL
The largest FVC should be with 150-200 mL
PEF- varible but with good effort
Need 3 acceptable test with good FEV and FEV1 and take up to 8 tests
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| What is considered a good test | Good start
No coughing or hesitation within the 1st second
At least 6 seconds with a 1 sec plat
No valsalva, glottis closure, or early termination
FIVC should show maximum effort
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| How do you choose the best test | Choose the largest for the FVC
Largest FEV1
Other values the best when you add FVC + FEV1`
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| List the indications for a PFT | Identify the High Risk Smoker
Early dectection of Lung disease
Follow the course of lung disease
measure therapy effectiveness
Determine the cause of dyspnea
Evaulate the effects of coocupational exposure
Determine degree of impairment
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| Define FEV1 | Forced Expiratory volume- the volume you can blast out in the 1st second of the FVC
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| A pts predicted FVC is 5L. They blow a FVC of 3L. What is their percent predicted? | 3/5=60%
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Created by:
laney21882
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