Lipoprotein Fractionation, Ultracentrifugation : 36435

Test Code
LIPOQ or 36435

CPT Codes
82465, 83701, 84478

Fasting for at least 12 hours is required.

Serum separator tube or plain red.

Transport Container
Centrifuge serum separator tube and transport. If plain red, centrifuge and aliquot 4.0 mL serum into a standard transport tube. (Min: 2.0 mL)

Transport Temperature

Specimen Stability
Ambient: 24 hours; Refrigerated: 7 days; Frozen:  -20 C 14 days, -70 C 1 year

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Over 24 hours room temperature.

Ultracentrifugation, Colorimetric, Enzymatic

Setup Schedule
Tuesday & Friday

Report Available
2-4 days  (From receipt at performing laboratory)

The assay manufacturer Beckman Coulter advises: N-Acetyl Cysteine (NAC), when administered in therapeutic concentrations (for the treatment of acetaminophen overdose), has been determined to interfere with assays for cholesterol, HDL cholesterol, and uric acid where NAC interference may lead to falsely low results. According to Beckman Coulter, the NAC interference should be insignificant by 12 hours after completion of the initial loading dose of an IV infusion treatment regimen consisting of an initial loading dose of 150 mg/kg administered over 1 hr, a second dose of 50 mg/kg administered over 4 hrs and a third dose of 100 mg/kg administered over 16 hrs.

Reference Range
See Laboratory Report.

Performing Laboratory
Quest Diagnostics

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.