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About This Test

Department: Biochemistry (referred)


  • Clotted (red top)


Turnaround Time:

6 - 8 weeks


Investigation of hypoglycaemia and assessment of residual islet cell function

Sample must be received by the laboratory within 1 hour of sampling.

Please send an additional fluoride oxalate (grey top) sample for glucose analysis.

Samples will not be referred for analysis unless: 

  • hypoglycaemia is demonstrated, or
  • clinical details support referral

Other Comments:

Analysed at SAS Peptide Hormones Section, Clinical Laboratory, Level B, Royal Surrey County Hospital, Egerton Road, Guildford, Surrey, GU2 5XX


Interpretive comments provided by referral laboratory

For more information, please see the following: C-Peptide - Lab Tests Online

See also: InsulinGlucose