drpkaur
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A 42-year-old, obese male complains of shortness of breath during physical activity and requests a exam for government disability qualification. His recorded (observed) and predicted values for the VC, FVC, and FEV1.0 before and after bronchodilator adminstration are presented with blood gases and DLCO values. This pulmonary impairment would be classified
Obstructive but not Restrictive
Obstructive and Restrictive
Restrictive but not Obstructive
Neither Restrictive nor Obstructive (ie, normal)
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| robin082006
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Obstructive and Restrictive?
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| mjl1717
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obstructive but not restrictive-- because of decreased FEV/FVC ratio.
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| mitty
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obstructive b/c FEV/FVC is below 0.8 and Restrictive b/c the resting vital capacity decreased.
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| robin082006
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I choose restrictive and obstructive because:
- All values are decreased---> exclude nornal lung
- FEV1/FVC< 0.8 --> most likely obstructive
- But after using bronchodilator--> very limited increases in above values--> must have a concomitant restrictive problem.
If Obstructive alone, pulmonary values must increase after using bronchodilators.
So option Both Restrictive and Obstructive is best
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| drpkaur
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Ok mitty got the point and robbin you are also correct..then what is the normal %age of resting vital capacity...
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