Jaime Pressly blew a .22 the night she was arrested for DUI, TMZ has learned.
Law enforcement sources tell us ... Jaime blew the .22 in the field. That's nearly 3 times the legal limit of .08.
As TMZ first reported, Jaime was arrested at around 11 PM last Wednesday in Santa Monica after cops stopped her on a traffic violation.
Jaime was booked on suspicion of DUI and was released on $15,000 bail.