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# Disease Lab 1

### Spirometry Lab

Define FVC Force Vital Capacity=Ttal volume of air that can be exhaled forcefull from TLC
Describe FVC Take the deepest breath you can in and blast it out as fast and long as you can
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
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
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%
List what the characteristics you would see in Restrictive disease FEV1= may be low >75% FEV1%= NORMAL
What is the formula for FEV1% FEV1/FEV
What are the most common test to determine where a disease is restrictive or obstructive? FEV, FEV1, & FEV1%
What is measure to determine lung functions pressure, flow, volume
What is the predicted values of the FEF of the large airways 200-1200
Of the three air ways which is the most effort dependent Large Airways
Which Of the airways should show normal values of 25-75% Medium airways
which of the airways is the least effort dependent Small (smallest)
What are the normal values of FVC 80-120-normal 70-80-mild 50-70-moderate less than 50- severe
Why do we use spirometry Simple Reproducible Office Based Easy to interprety Cheapest and most reliable ATS stands Diagnose obstruction and rule out restrictive
Describe the various settings and ways to obtain a PFT Health Screen Doctors Office Hospital bedside PFT Spirometry Plethysmography
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
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
How do you choose the best test Choose the largest for the FVC Largest FEV1 Other values the best when you add FVC + FEV1`
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
Define FEV1 Forced Expiratory volume- the volume you can blast out in the 1st second of the FVC
A pts predicted FVC is 5L. They blow a FVC of 3L. What is their percent predicted? 3/5=60%
Created by: laney21882