|Description||A circulating enzyme used as a marker of tissue damage.|
|Indication||Diagnosis of acute pancreatitis
|Additional Info||Amylase 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.
|Interpretation||Levels 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.|
|Tube||Serum or Heparin|
|Collection Conditions||Use 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. Vol||1 mL|
|Ref. Range (Male)||<110|
|Ref. Range (Female)||<110|
|Ref. Range (Paed)|| |
|Ref. Range Notes||20 - 110 U/L (Afrocaribeans have higher levels than Caucasians)
|IP Acute TAT||Refer to Website|
|IP Routine TAT||Refer to Website|
|GP Acute TAT||- Contact Laboratory|
|GP Routine TAT||Refer to Website|
Originally edited by : . Review due on 21/06/2017 12:00:39. Published By SB on 21/06/2016 12:00:39.