Normal Range of Urinary Amylase

Everyone desires good health, yet because people consume a variety of grains and foods, they remain susceptible to certain illnesses. Urinary amylase testing is one method used to help diagnose specific medical conditions. So, what is the normal reference range for urinary amylase?

Normal Reference Range for Urinary Amylase

The normal values for urinary amylase vary depending on the assay method employed. Using the Wohlgemuth (Wenz) method, the normal range is 8–32 U/L; using the Somogyi method, it is 80–300 U/L. Since different hospitals may use varying laboratory techniques, interpretation of results must always refer to the institution-specific reference ranges provided with the test report. Amylase is secreted primarily by the pancreas and salivary glands, enters systemic circulation, and is ultimately excreted by the kidneys. Excessive secretion from either the pancreas or salivary glands leads to increased urinary amylase excretion and elevated levels in urine.

In cases of pancreatic disease—such as chronic pancreatitis or pancreatic cancer—extensive pancreatic necrosis may occur, resulting in reduced amylase production and consequently lower urinary amylase levels. Thus, both elevated and decreased urinary amylase levels hold clinical significance. Elevated levels may be observed in mumps, acute pancreatitis, acute exacerbations of chronic pancreatitis, and pancreatic cancer. Additionally, extrapancreatic conditions—including acute gastrointestinal perforation and mechanical intestinal obstruction—may also cause increases. Therefore, clinical interpretation should integrate findings from serum amylase, serum lipase, and urinary amylase assays.

If you experience any physical discomfort, seek prompt medical evaluation so your physician can formulate an appropriate treatment plan based on your individual condition. Additionally, maintaining healthy lifestyle habits is essential. We hope this information has been helpful to you!