Protein
(g/dL)LDH
(U/L)Protein
(g/dL)LDH
(U/L)Serum LDH Upper Limit of Normal (ULN)
Varies by laboratory. Defaulting to 250 U/L if unsure.
Verified
Last Review: 2026
| Transudate | Exudate |
|---|---|
| Congestive Heart Failure | Pneumonia (Parapneumonic) |
| Cirrhosis (Hepatic Hydrothorax) | Malignancy |
| Nephrotic Syndrome | Pulmonary Embolism |
| Peritoneal Dialysis | Tuberculosis |
| Superior Vena Cava Obstruction | Rheumatoid Arthritis / Lupus |
Light RW et al. • Ann Intern Med. 1972;77(4):507-13. doi: 10.7326/0003-4819-77-4-507.
Last Comprehensive Review: 2026
Clinical Context
We think this might be relevant to the clinical guidance for Light's Criteria.
Clinical Context
We think this might be relevant to the clinical guidance for Light's Criteria.
Clinical Context
We think this has broad domain relevance to Light's Criteria.
