| POCUS | Point-of-care ultrasound |
| ED | Emergency department |
| RUQ | Right upper quadrant |
| RAS | Rokitansky–Aschoff sinuses |
| ERCP | Endoscopic Retrograde Cholangiopancreatography |
| MRCP | Magnetic Resonance Cholangiopancreatography |
| MRI | Magnetic resonance imaging |
| WBC | White blood cell count |
| LFTs | Liver function tests |
| HIDA | hepatobiliary iminodiacetic acid |
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