light’s criteria for effusions
protein: fluid/serum>0.5LDH: fluid/serum>0.6LDH: fluid>200if all negative–> transudativeif positive–> exudative
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light’s criteria for effusions
protein: fluid/serum>0.5LDH: fluid/serum>0.6LDH: fluid>200if all negative–> transudativeif positive–> exudative