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Test ID FNEOS Neopterin

Specimen Required

Specimen Type: Serum

Container/Tube: Red or SST

Specimen Volume: 0.8 mL

Collection Instructions: Draw blood in a plain red-top tube(s), serum gel tube(s) is acceptable. Spin down and send 0.8 mL serum light protected in a screw-capped vial (Supply T915 amber vial), shipped frozen.

Useful For

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

Method Name

Enzyme immunoassay (EIA)

Reporting Name

Neopterin, Serum

Specimen Type


Specimen Minimum Volume

0.5 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen (preferred) 180 days LIGHT PROTECTED
  Refrigerated  72 hours LIGHT PROTECTED

Reference Values

Adults: <2.5 ng/mL

Day(s) Performed


Report Available

1 to 12 days

Performing Laboratory

LabCorp Burlington

CPT Code Information


LOINC Code Information

Test ID Test Order Name Order LOINC Value
FNEOS Neopterin, Serum 34908-4


Result ID Test Result Name Result LOINC Value
FNEOS Neopterin, Serum 34908-4