Test Overview
Test Methodology

Colorimetric Rate

Test Usage

Renal function test.

Reference Range *

1.0 - 1.8 g/24 hrs (8.8-15.9 mMol/24 hrs). Random urine collections are reported in units of mg/dL, for which reference values are not established.

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details
Days Set Up
Daily
Analytic Time

8 hours

Soft Order Code
CREAU/CREAQ
Synonyms
  • CREATQ
  • Urine Creatinine
  • CREATQ
  • Urine Creatinine
  • CREATININE URINE 24 HOUR
  • CREATININE URINE RANDOM
  • CREATU
  • CREATUT
  • CREATININE URINE TIMED
Laboratory
Chemical Pathology
Section
Automation
Specimen Requirements
Collection Instructions

Collect 24 hour urine specimen with no preservative. Aliquot 5 mL into a plastic urine container and refrigerate. Record total 24 hour urine volume and collection dates/times on request form. Random urine also acceptable.

Alternate Specimen
Specimens collected with glacial acetic acid, HCl, Boric Acid, or Toluene preservative are acceptable. If collected in container with acid preservative, indicate on container and requisition: "Collected in Acid".
Normal Volume
5 mL aliquot of 24 hour urine collection or 2 mL aliquot of random urine collection.
Minimum Volume
2 mL aliquot of 24 hour urine collection or 1 mL aliquot of random urine collection.
Rejection Criteria
Diapers, sections of diapers, swabs or any other absorbent material will not be accepted as a collection container for urine.
Billing
CPT Code
82570
Fee Code
20309
LOINC
2161-8 CREATU, 2162-6 CREATQ