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To assess vitamin E levels to assist in diagnosing vitamin toxicity, malabsorption, neuromuscular disorders, and vitamin deficiency.
Serum collected in a gold-, red-, or red/gray-top tube.
(Method: High-performance liquid chromatography)
|Age||Conventional Units||SI Units (Conventional Units × 2.322)|
|Newborn||1–3.5 mg/L||2.3–8.1 micromol/L|
|Neonate||2.5–3.7 mg/L||5.8–8.6 micromol/L|
|2–5 mo||2–6 mg/L||4.6–13.9 micromol/L|
|6–12 mo||3.5–8 mg/L||8.1–18.6 micromol/L|
|1–6 yr||3–9 mg/L||7–20.9 micromol/L|
|7–12 yr||4–9 mg/L||9.3–20.9 micromol/L|
|13–19 yr||6–10 mg/L||13.9–23.2 micromol/L|
|Adult||5–18 mg/L||11.6–41.8 micromol/L|
|Values tend to decrease in older adults.|