Return to Test Directory
CREATININE, body fluid (087-0584)
Test Mnemonic:


Specimen Requirements:

Preferred: 10 mL plastic, conical, capped tube. (Min: 1 mL).


  Delivered to Sample Management within 4 hours of collection.  

Specimen Preparation:

Centrifuge the specimen prior to analysis to remove possible cellular and bacterial contaminants.


Room temperature for ≤5 days, Refrigerated for ≤30 days, Frozen for indefinite.  

Causes for Rejection:

Specimen too viscous for sampling, incomplete and/or incorrect sample identification, improper storage/transport.                                                    

Reference Range:

By report (reports may vary based on instrumentation, patient age and sex).

Turnaround Time:

Routine: 8 hours; ASAP: 4 hours; STAT: 1 hour.


Spectrophotometric Two-point Rate Reaction


Clinical Chemistry  

CPT 4 Code:



Note source of body fluid on request form.

If applicable, state clinical information that is required to be provided with specimen.

When ordering tests for which Medicare or Medicaid reimbursement will be sought, physicians should only order tests that are medically necessary for the diagnosis or treatment of the patient. Components of the organ or disease panels may be ordered individually. The diagnostic information must substantiate all tests ordered and must be in the form of an ICD-10 code or its verbal equivalent.
Return to Test Directory