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Medicine
True about lights criteria are all except
Ratio of pleural fluid protein to serum protein if greater than 0.5 - then it is exudative pleural effusion.
Ratio of pleural fluid LDH and serum LDH if greater that 0.5 - then its exudative pleural effusion.
Plueral fluid LDH 2 to 3 times the upper limit of serum LDH is diagnostic of exudative pleural effusion.
At least one of the 3 criteria is sufficient to diagnose exudative pleural effusion.
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