18 days
Liquid chromatography/tandem mass spectrometry (LC/MS-MS)
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Measures sialic acid in CSF. Elevated in certain lysosomal storage diseases.
CSF
1 mL
Sterile screw capped vial.
No special preparation is required for this test. You may eat, drink, and take your medications as normal, unless instructed otherwise by your healthcare provider.
Collect entire sample into a single sterile tube.
| Temperature | Period |
|---|---|
| Frozen | Indefinite at -80°C; Freeze as soon as possible after collection |