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Low-density Lipoprotein, Direct (8000101387)
Test Mnemonic:


Specimen Requirements:

Routine venipuncture. Preferred: SST (gel barrier), PST (Plasma separator tube), red-topped tube (see storage instructions) RST (rapid separator tube) (Min.: 3 mL of blood)

Minimum Volume:

3 mL 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.


Room Temperature for ≤ 24 hours, Refrigerated for 3 days, Frozen for ≤ 3 weeks.  (Avoid repeated freeze/thaw cycles).

Causes for Rejection:

Incomplete and/or incorrect sample identification, improper tube type and/or storage, transport. Gross hemolysis.

Reference Range:

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

Turnaround Time:

STAT: 1 hour      Routine: 8 hours




Clinical Chemistry

Patient Preparation :

No special patient preparation is necessary.

CPT 4 Code:


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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