Orexin-A/Hypocretin-1, Spinal Fluid

Test Code
ORXNAM


Preferred Specimen
CSF


Patient Preparation
Patient should not have recently received radioisotopes, either therapeutically or diagnostically, due to potential assay interference.

Minimum Volume
0.5 mL


Instructions
Hemolyzed specimens will give false-positive results. Specimens should be centrifuged to remove any red cells prior to shipping.


Transport Container
Sterile vial, no additives.


Transport Temperature
Frozen


Specimen Stability
Frozen: 120 days


Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Grossly hemolyzed specimens should be rejected.


Performing Laboratory
Mayo Clinic Laboratories sendout

Additional Information
Mayo Clinic Laboratories ORXNA Information

Last Updated: December 3, 2021


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.