Which of the following is not true regarding cholangitis

Cholangitis It is characterized by charcot's triad od abdominal pain+ jaundice + fever There is leucocytosis, hyperbilirubinemia and raised ALP and transaminases Positive blood culture is more common in paial obstruction than with complete obstruction Cholangiography is mandatory as a diagnostic and potentially therapeutic intervention Ref: Sabiston 20th edition Pgno :1507