Diagnosing diabetes

Know your type—right from the beginning

Today we know there are many different types of diabetes, not just type 1 and type 2. Because different types can require different treatments, it’s important to find out (diagnose) the correct type as early as possible.

Quest Diagnostics offers laboratory tests to help your doctor diagnose different types of diabetes, including the following:

  • Type 1–usually diagnosed in children and young adults
  • Type 2–the most common form of diabetes in adults and becoming more prevalent in children due to rising rates of obesity
  • Gestational–occurs during pregnancy
  • Latent autoimmune diabetes of adults (LADA)–appears during adulthood and may not be treated with insulin. It can, however, turn into diabetes that requires insulin if it is not managed properly
  • Maturity onset diabetes of the young (MODY)–the most common type of monogenic diabetes, a hereditary form that affects adolescents and young adults

We offer a comprehensive menu of tests and panels that provide doctors with the information they need to help with diagnosis. The menu includes tests of the following:

  • Glucose–also known as blood sugar, this is found at high levels in people with diabetes
  • Hemoglobin A1c (HbA1c)–a substance found in blood at increased levels in people with diabetes: HbA1c levels indicate average glucose levels over the past 4–8 weeks
  • C-peptide–a substance produced by the pancreas at the same time that insulin is produced; a high level of C-peptide may support a diabetes diagnosis
  • Antibodies–certain proteins produced by the immune system mistakenly attack the cells that produce insulin; detecting these helps diagnose type 1 diabetes and LADA

Read about living with diabetes

Know what’s ahead. Talk to your doctor about how
Quest Diagnostics testing can help you take control of diabetes.
Learn more below.

Are you at risk for diabetes? Read more
Preparing for your test visit
How to request a test