35 years old man presenting with acute pancreatitis. Ideal fluid of choice

Ref. API Textbook of Medicine. Pg. 813   Most imp consideration in the management of acute pancreatitis is conservative approach Fluids >Pain >Nutrition >Inflammation Ideal fluid of choice is Isotonic crystalloids 1st line management : NPO , IV Fluids ,IV antibiotics, IV anti inflammatory  + Blood investigations (Amylase and lipase)