What is the difference between transudate and exudate?

Transudate (increased hydrostatic pressure or low plasma onotic pressure, pleural proteins/plasma <0.6) Exudate (increased oncotic pressure due to inflammation of capillaries, pleural proteins/plasma proteins >0.6) This is light criteria (Protein ratio >0.5, LDH concentration in effusion >200 or LDH ratio >0.6)