Clinics and Departments

Laboratory Services

Lab Dept:

Chemistry

Test Name:

CREATININE

General Information

Lab Order Codes:

CREA

Synonyms:

Creat

CPT Codes:

82565 - Creatinine, blood

Test Includes:

Creatinine concentration is reported in mg/dL.

Logistics

Test Indications:

Creatinine produced as a by-product of muscle contraction, is fairly constant in the blood and is freely filtered by the glomerulus of the kidney. Useful in the evaluation of kidney function and in the diagnosis and treatment of renal diseases.

Lab Testing Sections:

Chemistry

Phone Numbers:

MIN Lab: 612-813-6280

STP Lab: 651-220-6550

Test Availability:

Daily, 24 hours

Turnaround Time:

1 hour

Special Instructions:

N/A

Specimen

Specimen Type:

Blood

Container:

Green top (Li Heparin) tube preferred
Alternate tube: Red top tube

Draw Volume:

0.6 mL blood

Processed Volume:

0.2 mL serum/plasma

Collection:

Routine venipuncture. Mix tubes containing anticoagulant by gentle inversion.

Special Processing:

Lab Staff: Centrifuge specimen, remove serum/plasma aliquot into plastic sample cup. Analyze sample immediately or store at refrigerated temperatures.

Patient Preparation:

None

Sample Rejection:

Mislabeled or unlabeled specimen

Interpretive

Reference Range:

Males:

Age:

Range (mg/dL)

0 – 7 days:

0.58 – 1.09

8 days – 1 month:

0.18 – 0.68

1 month – 3 years:

0.18 – 0.48

3 – 5 years:

0.18 - 0.58

5 – 6 years:

0.28 - 0.58

6 – 8 years:

0.28 – 0.68

8 – 10 years:

0.28 – 0.78

10 – 12 years:

0.38 – 0.89

12 – 14 years:

0.38 – 0.99

14 – 16 years:

0.48 – 1.09

16 – 18 years:

0.58 –1.19

>18 years:

0.58 - 1.29

Females:

0 – 7 days:

0.58 – 1.09

8 days – 1 month:

0.18 - 0.68

0 – 2 years:

0.18 – 0.48

2 – 5 years:

0.18 – 0.58

5 – 6 years:

0.28 – 0.58

6 – 9 years:

0.28 – 0.68

9 – 12 years:

0.28 – 0.78

12 – 15 years:

0.38 – 0.89

15 – 18 years:

0.38 – 0.99

>18 years:

0.48 – 0.99

Critical Values:

N/A

Limitations:

N/A

Methodology:

Enzymatic, correlated to IDMS traceable

References:

EZCRA Flex® reagent cartridge insert sheet, Siemens Healthcare Diagnostics Inc, Newark, DE 19714, PN 781270.001, US, issue date 2013-08-20 Rev C

EZCR Flex® reagent cartridge insert sheet (RXL/MAX), Siemens Healthcare Diagnostics Inc, Newark, DE 19714, PN 717270.003, US, issue date 2014-11-21 Rev E

EZCREA CAL product insert, Dimension Vista System, Siemens Healthcare Diagnostics Inc, Newark, DE 19714, PN 751270.001, US, issue date 03/2012 Rev D

Chemistry 1 Calibrator package insert, Siemens Healthcare Diagnostics Inc, Newark, DE 19714, PN 792018.002-US, Rev E, Issue date 06/2013

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

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

Pediatric Reference Intervals, Sixth Edition, AACC Press, Washington DC, 2007

Biorad Liquichek Unassayed Chemistry Control (Human) product insert, Bio-Rad Laboratories, Irvine, CA

Biorad Multiqual® 1 & 3 Control Levels product insert, Bio-Rad Laboratories, Irvine, CA

Biorad Liquichek Urine Chemistry 1 & 2 Control Levels Product insert, Bio-Rad Laboratories, Irvine, CA 92618

Updates:

2/4/2013: Method update, previously listed as Alkaline Picrate/Kinetic. Note reference range changes.
7/21/2015: Vista update



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