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- C-Peptide and Insulin
Reflects the patient's beta cell function. It, therefore, is a marker for endogenous insulin production with or without exogenous insulin injection. C-peptide is not affected by the presence or absence of insulin antibodies.
Electrochemiluminescence immunoassay (ECLIA)
0.5 mL (Note: This volume does not allow for repeat testing.)
If a red-top tube is used, transfer separated serum to a plastic transport tube. Avoid hemolysis.
Causes for Rejection
Citrate plasma specimen; hemolyzed specimen
This test may exhibit interference when sample is collected from a person who is consuming a supplement with a high dose of biotin (also termed as vitamin B7 or B8, vitamin H, or coenzyme R). It is recommended to ask all patients who may be indicated for this test about biotin supplementation. Patients should be cautioned to stop biotin consumption at least 72 hours prior to the collection of a sample.
|Order Code||Order Code Name||Order Loinc||Result Code||Result Code Name||UofM||Result LOINC|
|213660||Insulin and C-Peptide, Serum||004333||Insulin||uIU/mL||20448-7|
|213660||Insulin and C-Peptide, Serum||010109||C-Peptide, Serum||ng/mL||1986-9|