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Test Name:
Neopterin, Serum
- SBMF No:
45182 - Performance Lab Name:
ARUP Laboratories - Test Mnemonic:
NEOPTERIN - ABN:
Required – Not FDA-Approved - CPT Code:
83519 - LOINC Code:
19146-0 - Ref Lab Test No:
0098195 - Spec Type:
Serum - Spec Container:
Red top (serum) tube - Pref Vol:
2.0 mL - Min Vol:
0.5 mL - Fasting:
Yes (12 hours) - Patient Prep:
Patient should fast overnight (12 hours) prior to draw - Spec Collect:
Do not use gel-barrier tubes for specimen collection
Routine venipuncture
Protect sample from light - Spec Process:
Clot 30 minutes
Promptly centrifuge 15 minutes
Immediately transfer serum to light-protected (amber) plastic tube and freeze - Spec Store Transport:
Frozen
Protect sample from light - Spec Stability:
After separation from cells:
Room temperature (20-30°C): Unacceptable
24 hours refrigerated (2-8°C)
1 month frozen (-20°C) – Do not use frost-free units that undergo repeated freeze/thaw cycles - Spec Reject:
Sample not protected from light
Lipemic or grossly hemolyzed sample - Spec Remarks:
CRITICAL FROZEN – Separate samples must be submitted when multiple tests are ordered
Protect sample from light during collection, storage, and transport
Separate serum from cells ASAP - Methodology:
Radioimmunoassay (RIA) - Reference Range:
4.0-16.8 nmol/L
Note:
To convert to ng/mL, divide nmol/L by 3.95 - Additional Test Info:
This test was developed and its performance characteristics determined by ARUP Laboratories. The U.S. Food and Drug Administration has not approved or cleared this test; however, FDA clearance or approval is not currently required for clinical use. The results are not intended to be used as the sole means for clinical diagnosis or patient management decisions. - Day Run:
Tue - Time Reported:
2-9 days - Test Type:
CHEMISTRY
