Aashi wrote:
EXUDATES occur due to LOCAL factors which alters the formation and absorption mechanisms of pleural fluid,eg:- infections and malignancy surrounding the pleura and lungs, so the answer here is A------->bacterial pleuritis,That is the only EXUDATE in the choices, rest all in the choices are typical examples of a TRANSUDATE( here the SYSTEMIC factors like-----> Low serum proteins and increased pulmo.venous pressure----->altering the formation and absorption of pleural fluid..
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| new_n_lost
Politically InCorrect
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The correct answer is A.
An exudate results from leakage of protein-rich fluid from the plasma into the interstitium. It is usually the result of increased vascular permeability caused by inflammation. Exudates also contain numerous acute or chronic inflammatory cells, depending on the inciting event. Of the above choices, only bacterial pleuritis would produce an exudate. If pleuritis is caused by pyogenic organisms, the exudate is purulent (neutrophil-rich). If pleural inflammation is due to mycobacterial infection or neoplastic infiltration, the resulting exudate will contain chronic inflammatory cells.
In contrast, a transudate contains less protein and few inflammatory cells. There are two main mechanisms of transudate formation: 1) decreased oncotic pressure, such as that which occurs in cirrhosis of the liver, nephrotic syndrome, and protein-losing enteropathy (choices B, D, and E); and 2) increased hydrostatic pressure, which may result from congestive heart failure (choice C).
___________________
FORUM RULES-- Those who believe in telekinesis, raise my hand. I get enough exercise just by pushing my luck --P4U World.." The pure and simple truth is rarely pure and never simple."
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