Collection Notes: Overnight fasting is required. Protect specimen from light; use foil wrapping or amber tubes. Ship refrigerated.
Clinical Utility: Vitamin E deficiency in young children may cause neuropathy. Vitamin E deficiency in older children and adults has been suspected of causing sensory and motor neuropathy.
Serum (1 mL)
Foil-wrapped
Ambient 24 Hours
Refrigerated 7 Days
Frozen 28 Days
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