Pancreatitis is associated with a lot of swelling and inflammation. Giving fluids intravenously prevents dehydration and ensures that the rest of the organs of the body get adequate blood flow to support the healing process. Nutritional Support. Initially, no nutrition is given to rest the pancreas and bowels during the first 24 to 48 hours. After 48 hours, a plan to provide nutrition should be implemented because acute pancreatitis is a highly active state of inflammation and injury that requires a lot of calories to support the healing process.