The ratio of lipase to amylase, used to characterise pancreatic conditions.
The lipase to amylase ratio is a calculated value, not a separate blood test. It compares lipase and amylase, two enzymes made by the pancreas that both rise when it is inflamed.
The formula is: lipase ÷ amylase, using the units reported by the lab.
Both enzymes increase in pancreatitis, but their balance has been studied as a clue to the cause. The ratio has been proposed to help distinguish alcohol-related from non-alcohol-related acute pancreatitis.
A higher ratio has been associated more with alcoholic pancreatitis, while a lower ratio is seen more with non-alcoholic causes. The evidence is mixed, so it is a supportive clue rather than a definitive test.
Aniva reads your result against research-backed ranges, not just the lab's wide normal. The reference shown below is specific to this biomarker.
There is no firmly established cutoff for the lipase to amylase ratio. Some studies suggest a higher ratio favours an alcoholic cause of pancreatitis, but findings are inconsistent. It should be read as a weak supportive clue alongside the clinical picture, not as a standalone threshold.
Amylase comes from the salivary glands as well as the pancreas, which can affect the ratio. Both enzymes rise and fall on different timescales after symptoms begin, and kidney impairment raises both. Timing of the sample relative to symptom onset strongly affects the result.
Read with its components, lipase and amylase, and alongside the clinical history and imaging where relevant.
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