Pleural fluid can be better classified as to transudative or exudative origin by performing a:
A) Fluid-to-serum cholesterol ratio
B) Fluid-to-serum lactate dehydrogenase (LD) ratio
C) Fluid-to-serum ketone ratio
D) Fluid-to-serum gamma-glutamyltransferase ratio

Question

Quizplus · Accepted Answer

The fluid-to-serum cholesterol ratio is used to classify pleural fluid as transudative or exudative. A ratio of less than 0.5 indicates a transudate, while a ratio of 0.5 or greater indicates an exudate.

Pleural Fluid Can Be Better Classified as to Transudative or Exudative