Exudate if any one criterion is met. Transudates are pressure problems (HF, cirrhosis, nephrotic); exudates are pleural problems (infection, malignancy, PE).
What you enter
Pleural protein (g/L or g/dL)
Serum protein (g/L or g/dL)
Pleural LDH (U/L)
Serum LDH (U/L)
Lab upper limit of normal for serum LDH (U/L)
FORMULAExudate if pleural/serum protein >0.5, OR pleural/serum LDH >0.6, OR pleural LDH > ⅔ of the serum upper limit of normal
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