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Alphabetical Index
C-REACTIVE PROTEIN, serum (087-0417)
Test Mnemonic:

CRP
Specimen Requirements:
Collection:

7 mL of blood in SST, PST or red-topped vacutainer tube.  (Min: 3mL).  
Storage/Transport:

Delivered to Sample Management within 2 hours of collection.
Stability:

Room temperature for ≤ 8 hours, refrigerated for ≤ 72 hours, or frozen for ≤ 6 months.  (Avoid repeated freeze/thaw cycles).
Causes for Rejection:

Incomplete and/or incorrect sample identification, improper storage/transport, and gross hemolysis or lipemia.                            
Specimen Preparation:

Allow specimen to clot completely at room temperature. Centrifuge to separate serum from cells within 2 hours of collection. Transfer serum from collection tube to labeled plastic transport tube. 
Methodology:

Nephelometric   
Performed:

Monday – Sunday:  07:00 am - 3:00 pm.
Lab:

Special Chemistry
Turnaround Time:

  Monday - Sunday: 7 am - 3:00 pm
Reference Range:

By report (reports may vary based on instrumentation, patient age and sex).
CPT 4 Code:

86140      
Note:

  

If applicable, state clinical information that is required to be provided with specimen.  Director approval required for STAT requests.
Effective Date: 10/16/2014
Reviewed By/Date: Okorodudu, Anthony - 11/21/2018
Approved By/Date: Okorodudu, Anthony - 12/20/2022
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.

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