Amylase normalization in acute pancreatitis occurs typically within which time frame?

• A. 1-2 days
• B. 3-5 days
• C. 7-10 days
• D. 14-21 days

Answer: (B)

Amylase rises quickly after acute pancreatitis begins because damaged pancreatic acinar cells release it into the bloodstream. It typically starts within 6–12 hours and peaks by about 1–3 days. As the inflammation subsides and the pancreas heals, amylase is cleared from the blood by the kidneys and levels return to normal within roughly 3–5 days in most patients with mild disease. That 3–5 day window best fits the usual course, whereas 1–2 days is too soon for normalization, and 7–10 or 14–21 days is longer than typical. Keep in mind that in more severe cases, normalization can be a bit delayed, but the common teaching is about 3–5 days.