concept · created 2026-08-26 · updated 2026-08-26 · biomarker, diabetes
C‑peptide levels assess insulin dependence: <0.2 nmol/L (≈ <0.6 ng/mL) → severely insulin‑dependent; 0.2–0.7 nmol/L (≈ 0.6–2.2 ng/mL) → moderately insulin‑dependent; >0.7 nmol/L (≈ >2.2 ng/mL) → non‑insulin‑dependent. Interpretation should consider age, disease course, family history, and complementary tests (HbA1c caveats).
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…ion with age, disease progression, family history, and complementary tests. See [[c-peptide-reference-ranges]], [[lada-diabetes]], [[mody-diabetes]].
…proach to diabetes care, covering patient intake, diagnostic algorithm based on [[c-peptide-reference-ranges|C‑peptide]] levels, classification of diabetes types ([[lada-diabetes|LADA]], [[mody-diabetes|MODY]], type 1, type 2), treatment pa…
…beta‑cells. It falls within the moderate C‑peptide range (0.2–0.7 nmol/L). See [[c-peptide-reference-ranges]] and [[diabetes-diagnosis-algorithm]].
…conflicts with glucose readings, consider fructosamine or glycated albumin. See [[c-peptide-reference-ranges]] for alternative glycemic markers.
…response to low‑dose sulfonylureas, and delayed or no insulin requirement. See [[c-peptide-reference-ranges]].