The Leeds Teaching Hospitals NHS Trust

C-peptide (urine) (urine C-peptide:creatinine ratio, UCPCR)

Do not confuse urine C-peptide/creatinine ratio (UCPCR) with protein/creatinine ratio (PCR). Indication for testing: assessment of residual beta cell function in diabetic patients to help discriminate between type 1 diabetes and other sub-types of diabetes. <0.2 nmol/mmol creatinine indicates no residual insulin production. For more information, see ratio

ID Tests&Tubes0176
Additional Information Collect sample 2h after the biggest meal of the day. Urine should be transferred into a red-topped universal containing boric acid.
Turn Around Turnaround time stated by Royal Devon & Exeter lab: 7 days
Send to Blood Sciences LGI
(Test referred to: Royal Devon & Exter Hospital.)
Contact For further details please contact Leeds Pathology customer services:
Advice Full information on all referred tests can be found on the referred tests information database, EQMS reference BSF2REC17003.
Collection Con Minimum Volume: To the fill line.
Samples should be collected as follows: 1. Pass urine just before your biggest meal of the day and discard. 2. Eat your meal as usual with a glass or more of water. 3. Do not eat or drink anything else for the next 2 hours (unless you become hypoglycaemic in which case you should do this test another day). 4. Do not pass urine until 2 hours after this meal. 5. 2 hours after this meal, please pass some urine into the red-topped pot provided. Screw lid on tightly. 6. Write your name, date of birth, time of sample and time of meal on the bottle. Samples and forms should be labelled with 3 points of patient identification and time relative to prandial stimulation. **Instructions to lab: sample should be collected in a red-topped boric acid tube. Urine in plain universal is stable for 24h. Store frozen**
Sample REQ Urine
Ref. Range Notes Interpretation will be provided on report.
Telepath LUCPE / JUCPE