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C-peptide

C-peptide is a laboratory test that measures a result in a Blood (Serum) sample. It may be ordered to investigate symptoms, support a diagnosis or monitor a condition, depending on your clinician's advice.

C-peptide Test Info & Procedure

Group NameDiabetes
FastingFasting required; duration not supplied by laboratory
Sample TypeBlood (Serum)
Sample CollectionHome sample collection
ReportsMost reports: 24–48 hours after the sample reaches the lab; timing varies by test.
Report typeDigital report

C-peptide Test Visual Guide

Helps estimate how much insulin the body is making naturally.

Technician collecting a blood sample from a woman at home

Download C-peptide Test Visual Guide infographic (PNG)

ResultReported in ng/mL.
What it showsInsulin production clue.
SampleSerum. Fasting may be advised.
Common useDiabetes type and insulin output.

How C-Peptide Works

  1. Insulin is madeC-peptide is released with it
  2. Blood testedSerum level is measured
  3. Output reviewedShows body insulin production

Typical result context

Result contextGuide
Typicalabout 1.1 - 4.4 ng/mL
Lowreduced insulin output
Highpossible insulin resistance

Ranges vary by lab and timing; glucose level at sampling is important.

Why it may be advised

  • Insulin production check
  • Diabetes type review
  • Low sugar work-up

When to discuss it

  • Known diabetes
  • Insulin therapy review
  • Unexplained low sugar

Often reviewed with

  • Fasting sugar
  • Insulin fasting
  • HbA1c

Simple Testing Flow

  1. BookSelect C-peptide test online
  2. Home VisitCollection executive arrives
  3. SampleSample collected as instructed
  4. Lab ReportProcessed and shared digitally

Follow lab advice

  • Fasting may be requested
  • Share insulin/medicine use

May affect result

  • Kidney disease
  • Insulin medicines
  • Meal timing

Production marker

  • Not the same as insulin dose
  • Useful with glucose level

About the Test

The current booking price is shown at Rs. 1050 against an MRP of Rs. 1235, inclusive of taxes where applicable.

The laboratory lists this as a fasting test but has not supplied a fasting duration. Obtain the duration from the collection team before your appointment. Home sample collection is available in serviceable cities. A trained phlebotomist collects the sample using sterile equipment, and the report is shared online after processing.

C-peptide

C-Peptide Reference Guide

Reference ranges vary by laboratory and method. Use the range printed on your final report. The information below is educational only.

General Educational Range (Not a Report Range)

MeasureTypical guideNote
Reference rangeUse the range printed on your final reportUse the reference range printed on your final report.
Low C-peptideBelow lab rangeMay suggest low natural insulin production.
High C-peptideAbove lab rangeMay suggest insulin resistance or excess insulin production.

Why This Test Is Ordered

ReasonDescription
Natural insulinShows how much insulin the body is making.
Diabetes typingHelps distinguish insulin production patterns.
Hypoglycaemia reviewUsed when low blood sugar needs insulin-source review.

Symptoms And Who Should Test

SituationDescription
Diabetes follow-upPeople with unclear type 1/type 2 pattern.
Low sugar symptomsSweating, shakiness, hunger, confusion, dizziness.
Treatment usersPeople on insulin where natural insulin production needs review.

Preparation And Interpretation Notes

TopicGuidance
FastingThe laboratory lists this as a fasting test but has not supplied a fasting duration. Obtain the duration from the collection team before your appointment.
PairingOften read with glucose and insulin.
InterpretationExternal insulin does not add C-peptide.

Home sample collection for C-peptide is available in the cities below, subject to confirmation of your pincode at booking.

Check all cities where service is available →

C-peptide Test Price

Test conducted by Thyrocare partner laboratory Thyrocare Technologies Limited
Thyrocare partner laboratory
Rs. 1,235
Rs.1,050 15% Off
Free Home Sample Collection
Pay after sample collection
CAP Accredited NABL Accredited UKAS Management Systems ANAB Accredited

Why Choose Thyrocare for C-peptide

Review the preparation guidance, sample type, home collection availability and report information before booking C-peptide. The final collection and reporting details are confirmed during booking.
Home sample collection for diagnostic testing

Home Based & Quality Diagnostics
at an Unbeatable Price


Carefully designed Tests to provide you with the most vital information for your health.

Convenient Home Based

Affordable — Book Online

Certified Labs — NABL, CAP, ISO

Graphical Reports Online

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Laboratory Processing

Your sample is collected by a trained phlebotomist and sent to the partner laboratory for analysis. The laboratory processes the sample using its validated procedures and quality controls. Your final report shows the result, unit and reference range used for that test. Discuss an unexpected or abnormal result with your clinician.