α-Amylase

Measurement of α-amylase in serum and urine is mainly used for diagnosis of pancreatic disorders and for monitoring complications.

Reference Ranges

IFCCInternational Federation of Clinical Chemistry and Laboratory Medicine
Serum/Plasma
Women<100 U/L < 1.67 µkat/L
Men<100 U/L < 1.67 µkat/L
Urine
Women< 447 U/L < 7.45 µkat/L
Men< 491 U/L < 8.18 µkat/L
Each laboratory should check if the reference ranges are transferable to its own patient population and determine own reference ranges if necessary. For diagnostic purposes, the results should always be assessed with the patient’s medical history, clinical examinations and other findings.

Increased in

  1. Pancreatitis
  2. Perforated or penetrating peptic ulcer
  3. Acute ethanol ingestion
  4. Salivary gland disease (Mumps, inflammation)
  5. Obstruction of pancreatic duct
  6. Severe renal disease
  7. Macroamylasemia
  8. Stone in the common bile duct
  9. Ectopic pregnancy

Conversion

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U/L
µkat/L

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