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Common Use:
To assess nutritional status and evaluate liver function toward diagnosing disorders such as malnutrition and chronic kidney disease.

Serum collected in a gold-, red-, or red/gray-top tube.

Normal Findings:
(Method: Nephelometry)

AgeConventional UnitsSI Units (Conventional Units × 10)
Newborn–1 mo7–39 mg/dL70–390 mg/L
1–6 mo8–34 mg/dL80–340 mg/L
6 mo–4 yr2–36 mg/dL20–360 mg/L
5–6 yr12–30 mg/dL120–300 mg/L
7 yr–adult/older adult12–42 mg/dL120–420 mg/L

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