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Amylase, 24-Hour Urine
Test Code212
Preferred Specimen
24 Hour Urine Container
Minimum Volume
2 mL
Instructions
Record total volume and hours of collection on both the specimen and the test requisition.
Transport Container
Plastic screw-cap container
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 30 days
Frozen: 30 days
Refrigerated: 30 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Acidified urine
Methodology
Enzymatic
Reference Range
1-17 U/h
Clinical Significance
In pancreatitis, urine levels of amylase reflect serum changes by a time lag of 6-10 hours.
