Amylase, Random Urine with Creatinine

Test Code

QUAMY

Quest Code

8464

CPT Codes
82150, 82570

Preferred Specimen

10 mL random urine - no preservative

Minimum Volume

2 mL

Instructions

Please submit 10 mL of a well-mixed random collection. Collect without preservatives. Refrigerate during and after collection. Aliquot unpreserved specimen prior to any addition of acid.

Transport Container

Plastic urine container

Transport Temperature

Room temperature

Specimen Stability

Room temperature: 7 days
Refrigerated: 7 days
Frozen: 28 days

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Acidified urine

Methodology
Colorimetric (C) • Kinetic

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.

Performing Laboratory

Quest Diagnostics Nichols Institute-San Juan Capistrano, CA

33608 Ortega Highway

San Juan Capistrano, CA 92675-2042

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.