Diabetes (Mellitus, Type 1 and Type 2) (cont.)
IN THIS ARTICLE
What Tests Do Health-Care Professionals Use to Diagnose Diabetes?
Doctors use common tests to diagnose diabetes and also to monitor blood sugar control in diabetes.
The health-care professional will take a history including information about the patient's symptoms, risk factors for diabetes, past medical problems, current medications, allergies to medications, family history of diabetes, or other medical problems such as high cholesterol or heart disease, and personal habits and lifestyle.
A number of laboratory tests can confirm the diagnosis of diabetes.
Finger stick blood glucose: This rapid screening test may be performed anywhere, including community-based screening programs.
Fasting plasma glucose: The patient will be asked to eat or drink nothing for eight hours before having blood drawn (usually first thing in the morning). If the blood glucose level is greater than or equal to 126 mg/dL (without eating anything) at any age, they probably have diabetes.
Oral glucose tolerance test: This test involves drawing blood for a fasting plasma glucose test, then drawing blood for a second glucose test at two hours after drinking a specific sweet drink (containing up to 75 grams of sugar).
Glycosylated hemoglobin or hemoglobin A1c: This test measures how high the blood sugar levels have been over approximately the last 120 days (the average life span of the red blood cells on which the test is based).
Medically Reviewed by a Doctor on 3/3/2016
YOU MAY ALSO LIKE
Must Read Articles Related to Diabetes (Mellitus, Type 1 and Type 2)
Patient Comments & Reviews
The eMedicineHealth doctors ask about Diabetes (Type 1 and Type 2):
Diabetes - Symptoms and Signs
The symptoms of diabetes can vary greatly from patient to patient. What were your symptoms and signs at the onset of diabetes?
Diabetes Treatment - Effective Treatments
What treatments have been effective for your diabetes?
Diabetes - Experience
Share your experience with type 1 or type 2 diabetes.
Diabetes - Lifestyle Changes
What type of diabetes do you have (type 1 or type 2), and what lifestyle changes, for example, diet, exercise, or special glucose monitoring, have been effective in managing your diabetes?
Diabetes - Treatment Medications
What type of diabetes do you have, and what medications have been effective in managing the disease?
- The Basics of a Healthy Diabetes Diet
- How Well Are You Living With Diabetes?
- Diabetes Management: 11 Tips