Pulmonary function test interpretation Flashcards
1
Q
Relationship between DLCO and KCO (DLCO/VA)
KCO is DLCO/VA
A
2
Q
DLCO
A
The DLCO narrows the differential diagnosis of restrictive lung disease.
A low DLCO combined with reduced lung volumes suggests interstitial lung disease. A normal DLCO associated with low lung volumes suggests an extrapulmonary cause of the restriction, (pleural effusion, pleural thickening, neuromuscular weakness, or kyphoscoliosis.)
3
Q
A-a gradient
A
4
Q
Pao2 versus Spo2
A
5
Q
A
