C-peptide : creatinine ratio

Sample type: Urine - Random

Test name: C-peptide : creatinine ratio a.k.a. urine c peptide

Special precautions & notes: None.

Reference range: Interpretation of urine C-peptide:creatinine ratio for investigation of patients with established Diabetes mellitus (>3 years since onset): >0.6 nmol/mmol Substantial insulin secretion, associated with type 2 DM and MODY and absence of absolute insulin requirement; 0.2-0.6 nmol/mmol Intermediate insulin secretion; <0.2 nmol/mmol Severe insulin deficiency, managed as type 1 DM.

Container: Boric acid preservative (Olive green top)

Alternative container: Boric acid preservative (Red top)

Ideal volume (mL): 2 mL

Referred outside NBT for analysis? Yes

Discipline: Clinical Biochemistry

Turnaround time: 1 week

www.diabetesgenes.org/content/urine-c-peptide-creatinine-ratio

Referral location: Department of Clinical Biochemistry, Level 8, Bristol Royal Infirmary, Marlborough Street, Bristol, BS2 8HW