Decoding Pleural Effusions

This chapter focuses on understanding pleural fluid studies, primarily through Light's criteria, to distinguish between transudative and exudative pleural effusions. It explores the historical significance of the criteria, provides tips for remembering key ratios, and discusses the underlying pathophysiology affecting fluid accumulation. Additionally, the chapter examines the role of serum-pleural fluid albumin levels and cholesterol in enhancing diagnostic accuracy for pleural effusions.