Creatinine, Random Urine [8459X]

Test Code

6027

CPT Codes
82570

Preferred Specimen

10 mL of a random, unpreserved urine collected in a plastic urine container

Minimum Volume

0.5 mL

Other Acceptable Specimens

Urine collected in urinalysis transport tube (yellow-top, blue fill line, preservative tube) • Preserved urine with 6N HCl acid submitted in a plastic, urine container

Transport Temperature

Room temperature

Specimen Stability

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

Methodology
Colorimetric (C) • Kinetic

Setup Schedule

Set up: Daily; Report available: 1-3 days

Reference Range

≤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

Creatinine is the endproduct of creatinine metabolism. Creatinine is present primarily in muscle and the amount of creatinine produced is related to total skeletal muscle mass. Daily creatinine production is fairly constant except when there is a massive injury to muscle. The kidneys excrete creatinine very efficiently and blood levels and daily urinary excretion of creatinine fluctuate very little in healthy normal people. Since blood and daily urine excretion of creatinine show minimal fluctuation, creatinine excretion is useful in determining whether 24-hour urine specimens for other analysis (e.g., Protein) have been completely and accurately collected.

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.