Free calculate LIGHTS criteria to differentiate transudative vs exudative pleural effusions. This is an educational tool only - always consult a healthcare provider.
Pleural Fluid Analysis
Results
Enter pleural fluid values to calculate LIGHTS criteria
About LIGHTS Criteria
• L: LDH ratio >0.6 or LDH >2/3 upper limit normal
• I: Increased cholesterol
• G: Glucose <60 mg/dL suggests exudate
• H: pH <7.30 suggests exudate
• T: Triglycerides >110 mg/dL suggests chylous
• S: Serum-pleural albumin gradient <1.2 suggests exudate