Gi system

Question:

A 58-year-old patient presents with severe upper abdominal pain radiating to the back, persistent vomiting, abdominal tenderness, and a low-grade fever. Laboratory tests show markedly elevated serum lipase and amylase levels. The patient becomes hypotensive and develops difficulty breathing.

1. What is the most likely diagnosis?

2. Explain the pathophysiology of this condition.

3. What complications can develop if the condition becomes severe?

4. Outline the immediate management priorities for this patient.