Flashcards in PFTs Deck (37)
How is DLCO measured?
SINGLE breath (requires inhaled VC of greater than 1 L and 10 of breath holding)
Change is DLCO 7% per gram of Hb
What is a normal DLCO?
What things can increase DLCO?
putting blood/Hb in the lungs (e.g. CHF, pulmonary hemorrhage)
What are the uses of DLCO?
-differentiate between asthma and COPD, or interstitial and chest wall disease
- diagnose pulmonary vascular disease
What things would show normal PFT and low DLCO?
pulmonary emboli or HTN