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ID:22 Amylase (serum/plasma)
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DescriptionA circulating enzyme used as a marker of tissue damage.
IndicationDiagnosis of acute pancreatitis
Additional InfoAmylase is also raised in acute abdominal disorders, biliary tract disease, DKA, renal failure, ruptured ectopic pregnancy, macroamylasaemia, pancreatic pseudocyst, salivary gland inflammation (mumps). If amylase levels remain high for a prolonged period of time consider macroamylasaemia or a pancreatic pseudocyst. A urine amylase/creatinine ratio may be useful in such cases and also for diagnostic purposes when presentaion of acute pancreatitis is late.
Concurrent Testsna
Dietary Requirementsna
InterpretationLevels will exceed 2 X ULRR in 90% cases and 5 X ULRR in 60% cases. The rise occurs 4 hours post pain and peaks at 24 hrs. Amylase levels will remain elevated for 3 - 7 days. See additional info for other causes.

DepartmentBiochemistry
SampleBlood
TubeSerum or Heparin
Tube Picture
Collection ConditionsUse Gold top (serum gel) tube except for Intensive care units, renal unit, transplant unit, patients on IV heparin (use Green/Yellow top tube for these patients).
Min. Vol1 mL
Freq.daily

Ref. Range (Male)<110
Ref. Range (Female)<110
Ref. Range (Paed)
Ref. Range Notes20 - 110 U/L (Afrocaribeans have higher levels than Caucasians)
Unitsiu/L
IP Acute TATRefer to Website
IP Routine TATRefer to Website
GP Acute TAT- Contact Laboratory
GP Routine TATRefer to Website
Turnround CommentNA

Originally edited by : . Review due on 21/06/2017 12:00:39. Published By SB on 21/06/2016 12:00:39.