Pleural Effusion Flashcards
1
Q
Pleural effusion aetiology
A
Disturbances in hyfrostatic-osmotic pressure gradients - transudate
Pleural inflammation - protein rich exudate
Lymphatic obstruction - transudate
2
Q
Light’s criteria
A
For classification on whether transudate or exudate. IF exudate further tests required to determine underlying cause
3
Q
An effusion is likely to be an exudate if
A
P.fluid LDH : Serum LDH >0.6
P.fluid LDH >2/3 upper limit of normal serum LDH
P.fluid protein:Serum protein >0.5
4
Q
Pleural effusion common causes
A
Pneumonia
CHF
Malignancy
Pulmonary embolism
