Why do I need a C-peptide test?
You may need a C-peptide test if your health care provider thinks you have diabetes, but is unsure whether it is type 1 or type 2. You may also need a C-peptide test if you have symptoms of low blood sugar (hypoglycemia). Symptoms include:
Sweating
Rapid or irregular heartbeat
Abnormal hunger
Blurred vision
Confusion
Fainting
