Final answer:
In acute pancreatitis, it is important for the patient to monitor their stools for the presence of fat.
Step-by-step explanation:
The nurse determines that further discharge instruction is needed when the patient with acute pancreatitis states 'I should observe for fat in my stools.' This statement indicates a lack of understanding of the condition. In acute pancreatitis, the pancreas is unable to properly digest fat, leading to the presence of fat in the stools. Therefore, it is essential for the patient to monitor their stools for the presence of fat as an indicator of how well their pancreas is functioning.