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Biochemistry
Lipase is a digestive enzyme made mostly by your pancreas, and a lipase test is one of the more accurate ways to check for acute pancreatitis, especially when the cause is linked to alcohol use. Lipase is more specific to the pancreas than amylase, the other digestive enzyme commonly tested alongside it, so a result out of proportion to amylase can point your doctor more directly at the pancreas. Beyond diagnosing a sudden pancreatitis episode, it's also used to monitor chronic pancreatic conditions, cystic fibrosis, and inflammatory bowel diseases like Crohn's disease, where treatment response is tracked over repeat tests. MedlinePlus gives a general range of 0 to 160 U/L, though this varies by lab.
This test measures the amount of lipase circulating in your blood, an enzyme your pancreas releases into the small intestine to help break down fat. When the pancreas is inflamed or damaged, lipase leaks into the bloodstream in much larger amounts than usual, which is what a raised result reflects. Because lipase stays elevated for longer than amylase after a pancreatitis episode, it's often useful even when someone is tested a few days after symptoms started.
Amylase and lipase are both digestive enzymes tested for suspected pancreatitis, but lipase is considered more specific to the pancreas — other conditions can raise amylase without any pancreatic involvement, which makes lipase the more reliable of the two on its own. It's also considered more accurate for pancreatitis linked to alcohol use.
Lipase tends to rise within hours of an acute pancreatitis episode and stays elevated for several days, longer than amylase typically does. That gives it a wider testing window, which matters if someone doesn't get to a doctor immediately after symptoms start.
Lipase is also used to monitor chronic conditions that affect the pancreas or digestion more broadly, including cystic fibrosis, chronic pancreatitis, and Crohn's disease, tracking how well treatment is controlling the underlying condition over time.
A high lipase level isn't only about the pancreas. Kidney disease, gallbladder disease, a bowel blockage, diabetes, and disorders of the salivary glands have all been linked with raised lipase, which is why your doctor reads the result alongside your symptoms and imaging rather than on lipase alone.
MedlinePlus gives a general range of 0 to 160 U/L, though normal ranges vary between labs and by the method used. Use the figure printed on your own report.
A very high lipase level is usually a sign of acute pancreatitis. It can also rise with other conditions including kidney disease, gallbladder disease, a bowel blockage, or diabetes, so your doctor reads it alongside your symptoms.
Lipase is considered more specific to the pancreas than amylase, since other conditions can raise amylase without pancreatic involvement. Lipase also stays elevated for longer after an episode, giving a wider window for testing.
Requirements can vary by lab. Ask your doctor or the centre what's needed before your appointment.
This page is general information about the test, not medical advice. Your own report's reference ranges apply — please discuss your results with your doctor.
Yes. Beyond diagnosing sudden pancreatitis, lipase is also used to track chronic pancreatic conditions, cystic fibrosis, and Crohn's disease over repeat tests, to see how well treatment is working.
Lipase typically rises within hours of an acute pancreatitis episode and can stay raised for several days, longer than amylase usually does. That's part of why it's often the preferred test if there's been a short delay in getting tested.