Casandra
Casandra Test Code LC52041Version 1 (DRAFT)
Performing Lab
Sepiapterin/Dihydrobiopterin (CSF)
Clinical Use
Order TestUse
To establish diagnosis of sepiapterin reductase deficiency to allow focused treatment
Special Instructions
Not provided.
Limitations
This test was developed and its performance characteristics determined by Labcorp. It has not been cleared or approved by the Food and Drug Administration.
Test Details
Methodology
Mass Spectrometry
Biomarkers
Dihydrobiopterin
AnalyteDihydrobiopterin • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Sepiapterin
AnalyteSepiapterin • Concentration / Level • Quantitative (Continuous) (e.g., copies/mL, % expression)
Result Turnaround Time
10-14 days
Related Documents
For more information, please review the documents below
Specimen Requirements
Specimen
Cerebrospinal Fluid
Volume
0.5 mL
Minimum Volume
0.1 mL
Container
Sterile (CSF) container
Collection Instructions
CSF should be collected into special collections tubes that are submitted to the physician. MNG already provides these tubes and the package contains specific collection instructions.
Storage Instructions
Freeze as soon as possible after collection.
Causes for Rejection
Heavily blood-contaminated sample; sample received thawed
Stability Requirements
| Temperature | Period |
|---|---|
| Room Temperature | Unstable (stability provided by manufacturer or literature reference) |
| Refrigerated | Unstable (stability provided by manufacturer or literature reference) |
| Frozen | -20 C° = 72 hours; -80 C° = Indefinite (stability provided by manufacturer or literature reference) |