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Connecting peptide insulin, insulin C-peptide, proinsulin C-peptide.

Common Use:
To evaluate hypoglycemia, assess beta cell function, and distinguish between type 1 and type 2 diabetes.

Serum collected in a red-top tube.

Normal Findings:
(Method: Immunochemiluminometric assay, ICMA)

AgeConventional UnitsSI Units (Conventional Units × 0.333)
9 yr0–3.3 ng/mL0–1.1 nmol/L
10–16 yr0.4–3.3 ng/mL0.1–1.1 nmol/L
Greater than 16 yr0.8–3.5 ng/mL0.3–1.2 nmol/L
1-hr response to glucose2.3–11.8 ng/mL0.8–3.9 nmol/L

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