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Gastroenterology 7 min read Undergraduate & Postgraduate

Acute Pancreatitis: Diagnosis, Severity and Early Management

How to confirm acute pancreatitis, identify the cause, assess organ failure and avoid common outdated management habits.

Exam-oriented educational summary · Updated 10 September 2026

Typical exam stem

A patient presents with severe epigastric pain radiating to the back and elevated lipase. How would you investigate and manage acute pancreatitis?

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1. Sixty-second answer plan

1:00

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2. Section checklist

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3. Exam-pearl flashcards

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4. Viva drill

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Question 1 of 30 confident

What are the diagnostic criteria for acute pancreatitis?

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1

Confirm the diagnosis

Acute pancreatitis is usually diagnosed when at least two of three features are present: typical abdominal pain, a significant rise in pancreatic enzymes and characteristic imaging. Routine early CT is not necessary when the diagnosis is already clear and the patient is improving.

2

Find the cause

  • Gallstones and alcohol are common causes.
  • Review triglycerides, calcium, medications, recent procedures and trauma when appropriate.
  • Use transabdominal ultrasound to evaluate for biliary disease.
  • Consider less common structural or malignant causes when the usual explanation is absent.
3

Early management

Provide appropriate fluid resuscitation guided by repeated clinical assessment, adequate analgesia and early nutritional support as tolerated. Monitor for organ failure rather than relying on enzyme trends to determine severity. Antibiotics are not used routinely for uncomplicated sterile pancreatitis.

Urgent ERCP is reserved for selected biliary pancreatitis scenarios such as associated cholangitis or persistent biliary obstruction. Patients with necrosis, persistent organ failure or local complications require multidisciplinary specialist care.

Guideline source for further reading

This page is an original exam-revision summary. For clinical decisions, use current local protocols and the primary guidance below.

Educational use: This material is designed for examination revision and does not replace patient-specific clinical judgement, local treatment protocols or specialist advice.