“…2 Among neonates, chylothorax can be distinguished from pleural transudate and pleural exudate by the leukocyte count in pleural effusion is >1,000/μL 2 with a lymphocyte fraction above 80%, 2 and elevated triglyceride levels in the pleural effusion above 100 to 110 mg/dL or above levels detected in serum; however, triglycerides are not present unless enteral feeds are initiated. 2 It is also informative if the pleural effusion is milk-colored, with total protein levels higher than 2.5 g/dL, 6 a P/S ratio of IgG > 0.60, 7 and LDH levels higher than 110 IU/L. 2,6 • Pleural effusion accumulation was consistently unilateral (right side).…”