Pneumonia

Lights criteria (High protein and LDH = exudate), determines presence of exudate with protein and LDH levels

  • Pleural fluid protein to serum protein ratio >0.5
  • Pleural fluid LDH to serum LDH ratio >0.6
  • Pleural fluid level >2/3 of upper value for serum LDH
  • Additional criteria – Confirm exudate if results equivocal
    • Serum albumin – pleural fluid albumin <1.2g/dL

 

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A&Edepartment