drpkaur
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A 28-year-old male smoker complains of periodic coughing spells, especially during exertion. His recorded (observed) and predicted values for the VC, FVC, and FEV1.0 before and after adminstration of a bronchodilator are presented. This pulmonary impairment would be classified as Obstructive but not Restrictive
Obstructive and Restrictive
Restrictive but not Obstructive
Neither Restrictive nor Obstructive (ie, normal)
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| mjl1717
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im definetly not sure of this, but isnt greater then 80% considered restrictive. {fev1/fvc ratio} comments?
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| robin082006
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Restrictive but not Obstructive
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| alexaE
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agree
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veni vidi...vincam
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| eva
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obstructive but not restrictive
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eva
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| nadiabarati
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restrictive and obstructive
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| drpkaur
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well friends ,robin is correct...robin could u explain it to eveyone.....thanx..
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| robin082006
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Here my reasoning
VC, FVC, and FEV1.0: all decrease--> abnormal pulmonary function--> but occur in both obstructive and restrictive PD.
But in this case FEV1/FVC>0.8--> most likely restrictive
In addition, VC, FVC, and FEV1.0 seem not to increase after bronchodilator--> confirm restrictive and no obstructive
In obstructive we expect VC, FVC, and FEV1.0 increase significantly after using bronchodilators.
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| drpkaur
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Wow gr8 explanation ..thanx robbin for ur excellent remarks...
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