Light's criteria

(redirected from Pleural fluid/serum LDH ratio)

Light's criteria

Criteria which help differentiate pleural exudates and transudates
Light's criteria for exudates–any of following
Pleural fluid/serum protein ratio > 0.5
Pleural fluid/serum LDH ratio > 0.6
Pleural fluid LDH >23 the normal upper limit for serum  
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