Fever, jaundice, and RUQ pain (Charcot's triad)
Recommended: RUQ Ultrasound first, then MRCP if obstruction is the preferred imaging study for fever, jaundice, and ruq pain (charcot's triad). US for ductal dilation and stones.
Recommended study
RUQ Ultrasound first, then MRCP if obstruction
US for ductal dilation and stones. MRCP for non-invasive duct evaluation when ERCP is not immediately needed. CT for complications (abscess).
If the default doesn't apply
Decompression needed
ERCP
IV contrast