To Determine Diagnosis
Diagnosis established by 2 of:
- Abdominal pain
- Serum amylase and/or lipase >3x upper limit of normal
- Characteristic findings from abdominal imaging
Serum Marker
- Lipase (preferable)
- Amylase
To Determine Aetiology
History & Examination
- History of alcohol intake
- Medication
- Recent procedures
Laboratory Investigations
- LFTs
- Calcium
- Triglycerides
- Viral antibodies
Imaging Investigations
- Abdominal ultrasound
- To rule out microlithiasis if other investigations negative:
- Endoscopic ultrasound - first line
- MRCP
- CT if persistent organ failure at 6-10 days
To Determine Severity / Prognosis
Scoring Sytstems
- Atlanta Criteria
- APACHE II Score
- Glasgow's Score (at 48 hours)
Investigations
- ABG
- LDH
To Assess for Complications
- CXR
- ABG
- Renal function tests