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Test Mnemonic:


Specimen Requirements:

7mL of blood in Red-topped tube or SST. (Min: 3mL of blood).


Delivered to Sample Management within 2 hours of collection.    

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. 


Room temperature for ≤ 8 hours, refrigerated for ≤ 48 hours or frozen for 2 months.

Causes for Rejection:

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

Reference Range:

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

Turnaround Time:

M-F: within 24 hours




Special Chemistry; Monday – Friday: 7am – 3:30 pm

Patient Preparation :

Draw before a meal to avoid excess lipids in blood.

CPT 4 Code:



The test can be ordered only once per inpatient admission and only once per month for outpatients. Additional tests must have the approval of the laboratory director.  Not available on Week-ends.

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.
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