Clinics and Departments

Laboratory Services

Lab Dept:

Urine/Stool

Test Name:

CREATININE, URINE

General Information

Lab Order Codes:

UCRE

Synonyms:

Creatinine, Random Urine

CPT Codes:

82570 – Creatinine, other source

Test Includes:

Urine creatinine concentration in mg/dL

Logistics

Test Indications:

Creatinine is a high energy compound used in the metabolic processes of muscle contraction. A portion of the free creatine in muscle spontaneously and irreversibly converts to creatinine. Creatinine is present in all body fluids and secretions. It is freely filtered by the kidney glomeruli and is measured to assess kidney function.

Lab Testing Sections:

Chemistry

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 day

Special Instructions:

N/A

Specimen

Specimen Type:

Urine, random collection

Container:

Plastic leakproof container (No preservatives)

Draw Volume:

1 - 3 mL from a random urine collection

Processed Volume:

Minimum: 0.5 mL urine

Collection:

A random urine sample may be obtained by voiding into a urine cup and is often performed at the laboratory. Bring the refrigerated container to the lab. Make sure all specimens submitted to the laboratory are properly labeled with the patient’s name, medical record number and date of birth.

Special Processing:

N/A

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimens

Interpretive

Reference Range:

No reference ranges established for random urine samples

Critical Values:

N/A

Limitations:

N/A

Methodology:

Enzymatic, correlated to IDMS traceable

References:

EZCR Flex® reagent cartridge insert sheet PN 717270.003, issue date 2011-03-07 Rev C

Clinical Significance, Dade Behring Inc., Glasgow Busines Community, Mailbox 531, P.O. Box 6101, Newark, Delaware 19714

Jacobs & DeMott Laboratory Test Handbook (2001) Lexi-Comp, Inc, Hudson, OH, 5th Edition

Biorad Liquichek™ Unassayed Chemistry Control (Human) product insert, Irvine, CA

Biorad Liquichek™ Urine Chemistry Control Product insert, Bio-Rad Laboratories, Irvine, CA 92618

Updates:

2/4/2013: Method update, previously listed as Alkaline Picrate/Kinetic



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