C-Peptide of Insulin

Ordering the C-Peptide of Insulin Test

The C-Peptide of Insulin test helps measure how much insulin your pancreas is making. This test is often used to find out if your body is making enough insulin or if you might need help managing your blood sugar. Interestingly, C-peptide levels can also help doctors tell the difference between type 1 and type 2 diabetes, which can change how your care is managed.

Ordering this test can provide clear answers about your insulin production. Here are some specific benefits of ordering the C-Peptide of Insulin test:

• Shows if your pancreas is making insulin on its own
• Helps find out if high or low blood sugar is caused by too much or too little insulin
• Guides your doctor in choosing the right diabetes treatment
• Checks if your body is reacting to diabetes medicine
• Can help spot insulin-producing tumors in rare cases

Who Might Need a Pancreatic Insulin Marker Test

People who have been told they have diabetes but are unsure which type, or those who have trouble keeping their blood sugar steady, may benefit from this test. For example, someone who has been using insulin for a while but still has unpredictable blood sugar changes might want to know if their body is still making any insulin.

Ordering this test may also be helpful in these situations:

• Someone recently diagnosed with diabetes who needs to know if their pancreas is still working
• A person with symptoms of low blood sugar without a clear reason
• Someone who has had a pancreas transplant and needs to check if it is working
• A person with a family history of rare insulin-producing tumors
• Someone with kidney problems, since C-peptide is removed by the kidneys and can show changes in insulin production

This test is important because it gives a clear measurement of how much insulin your body is making, which can help guide your treatment plan and avoid unnecessary changes in medication. Waiting to order this test could delay finding out if your current treatment is working or if you need a different approach.

Preparing for a Blood Insulin Peptide Lab

Fasting for 10-12 hours is usually needed before this test, so plan to avoid eating or drinking anything except water during that time. Always follow any directions your doctor or healthcare provider gives you to make sure your results are as helpful as possible.

Labs Included When Ordering Your C-Peptide of Insulin Test

Reference ranges can change over time. For the most current values, visit the Quest Diagnostics lab test directory.

C-Peptide of Insulin FAQ

Is there C-Peptide of Insulin testing near me?

You can find nearby locations for C-Peptide of Insulin testing using the patient service center locator, which also lists mobile phlebotomy options. For those who need regular blood sugar checks or have mobility challenges, having a convenient site makes sample collection much easier and less stressful.

What is the cost of the test?

The price you see for the C-Peptide of Insulin test includes all fees, even the sample collection at patient service center locations. Ordering this test is worth it if you want to know exactly how much insulin your body is making, which can help guide your diabetes care.

How often should I retest?

Most people only need to repeat the C-Peptide of Insulin test if their treatment plan changes or if their doctor wants to check for changes in insulin production. Retesting can help track how your pancreas is working over time and make sure your treatment is still the best fit.

How accurate is the test?

The C-Peptide of Insulin test uses immunoassay technology, which is highly specific for detecting C-peptide in blood samples. The test has a specificity of 99% and a sensitivity of 98%. All tests at TrueHealthLabs.com are performed by CLIA-certified labs, meeting strict quality and precision standards.