Book blood tests, full body checkups, and pathology panels with free home sample collection, on-time phlebotomist visits, and digital reports in 24–48 hours.
Real operational metrics from CoreLab diagnostic services.
Search by test name or package — free home collection & on-time slots when you book online.
The C-Peptide – Post Prandial (PP), Serum test measures the level of C-peptide in your blood 2 hours after eating a meal. C-peptide is a byproduct of insulin production, and its measurement helps assess how much insulin your pancreas is producing in response to food intake.
Evaluate Post-Meal Insulin Production: This test helps determine how well your pancreas is producing insulin after food consumption. It's particularly useful in understanding your body's response to meals and glucose spikes.
Assess Insulin Sensitivity: By measuring C-peptide after eating, the test can help identify insulin resistance or pancreatic dysfunction, which are key factors in the development of type 2 diabetes and metabolic syndrome.
Monitor Diabetes: For those already diagnosed with diabetes, this test helps track how well the pancreas is responding to food and producing insulin after meals.
After fasting for at least 8 hours, you eat a meal, and a blood sample is taken 2 hours after eating. The level of C-peptide is then measured. Since C-peptide is released in equal amounts to insulin when the pancreas secretes it, this test serves as a reflection of insulin secretion in response to glucose.
The normal range for C-peptide post prandial levels generally falls between 0.9 to 4.5 ng/mL, but it can vary slightly depending on the laboratory and individual health conditions.
Low C-peptide levels may indicate insulin deficiency, as seen in type 1 diabetes or pancreatic insufficiency.
High C-peptide levels may suggest insulin resistance, where the body produces more insulin in response to food but struggles to use it effectively.
To Monitor Insulin Production After Meals: This test is particularly useful for assessing how well your pancreas responds to glucose after eating. It can help evaluate insulin resistance or beta-cell function in individuals with diabetes or pre-diabetes.
To Diagnose and Monitor Insulin Resistance: Elevated C-peptide levels after a meal can suggest insulin resistance, which is often seen in type 2 diabetes and obesity.
To Assess Pancreatic Function: The test is helpful in assessing pancreatic function and insulin production, which is crucial for understanding how well your body is handling blood sugar.
Test Type: Blood
Reporting: Same Day
Free Home/Office Sample Collection
Fasting: Fasting not Required
Best & Honest Price
One Prick Sample Collection Policy
Yes. Book home collection when ordering online or call our team. Trained phlebotomists visit your address at the scheduled slot.
Most routine tests are reported within 24–48 hours after sample validation. Specialized tests may take longer — see your booking confirmation.
CoreLab follows NABL-aligned quality-assured pathology processes with structured SOPs, trained collectors, and MD pathologist oversight.
View CoreLab diagnostic centers & home collection in Ghaziabad