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Amylase, Random Urine with Creatinine
Test Code8464
CPT Codes
82150, 82570
Preferred Specimen
10 mL random urine collected in a plastic leak-proof container - no preservative
Minimum Volume
2 mL
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days
Refrigerated: 7 days
Frozen: 28 days
Methodology
Colorimetric (C) • Kinetic
Setup Schedule
Set up: Daily; Report available: Next day
Reference Range
| Amylase, Creatinine Ratio | 40-440 U/g creat |
| Amylase, Random Urine | Not established |
Creatinine, Random Urine
| ≤6 Months | 2-28 mg/dL |
| 7-11 Months | 2-31 mg/dL |
| 1-2 Years | 2-110 mg/dL |
| 3-8 Years | 2-130 mg/dL |
| 9-12 Years | 2-160 mg/dL |
| >12 Years Male | 20-320 mg/dL |
| >12 Years Female | 20-275 mg/dL |
Clinical Significance
Urinary amylase is useful in the consideration of macroamylasemia and pseudocyst of the pancreas. With macroamylasemia, only the serum concentration is elevated. With pseudocysts, the urinary concentration remains elevated for weeks after an episode of acute pancreatitis.
