Neopterin, Serum

Test Code

93917

Alias/See Also

1230401440 | LAB9070: Neopterin Serum | QUEST EAP: 93917

CPT Codes
83520

Preferred Specimen

0.8 mL serum - protected from light

Minimum Volume

0.3 mL

Other Acceptable Specimens

Plasma collected in: EDTA (lavender-top) tube - protected from light

Instructions

If tube other than a gel-barrier tube is used, transfer separated serum or plasma to a plastic amber, protected from light transport tube.

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: Unacceptable
Refrigerated: 72 hours
Frozen: 6 months

Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)

Not light protected

Methodology
Immunoassay (IA)

Setup Schedule

Set up: Mon; Report available: 5-8 days

Reference Range

Adults

<2.5 ng/mL

Clinical Significance

Increased levels of neopterin are found during impaired renal function and viral infections in transplant patients. Elevated levels are also indicators for conditions related to impaired cellular immunity.

Performing Laboratory
LabCorp of America
1447 York Court
Burlington, NC 27215-3361

Last Updated: April 21, 2023

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.