Pulmonology Flashcards
1
Q
Pleural exudate characteristics
A
Protein pleural fluid to serum ratio > 0.5, lactate dehydrogenase (LDH) pleural fluid to serum ratio > 0.6
LDH > 2/3 upper limits of normal for serum LDH
2
Q
Common causes of respiratory acidosis
A
Exacerbations of COPD, severe exacerbation of asthma, and narcotic overdose.
3
Q
Diffusing capacity (DLCO) in chronic bronchitis and emphysema.
A
DLCO is normal in chronic bronchitis; a decreased DLCO is more consistent with a diagnosis of emphysema.
