Diabetes Tests & Diagnosis

In this section:

Who ought to be examined for diabetes?

Type 1 diabetes
Type 2 diabetes
Gestational diabetes
What checks are used to diagnose diabetes and prediabetes?
What checks are used to diagnose gestational diabetes?
What do check numbers inform me if I even have diabetes or prediabetes?
Which checks assist my fitness care expert understand what form of diabetes I even have?
Your fitness care expert can diagnose diabetes, prediabetes, and gestational diabetes via blood checks. The blood checks display in case your blood glucose, additionally known as blood sugar, is simply too excessive.

Do now no longer attempt to diagnose yourself in case you assume you may have diabetes. The testing gadget that you could purchase over the counter, consisting of a blood glucose meter, can’t diagnose diabetes.

Who ought to be examined for diabetes?

Diabetes, Blood Sugar, Diabetic, Medicine, Insulin

Anyone who has signs and symptoms of diabetes ought to be examined for the disease. Some human beings will now no longer have any signs and symptoms however can also additionally have threat elements for diabetes and want to be examined. Testing permits fitness care specialists to locate diabetes faster and paintings with their sufferers to control diabetes and save you complications.

Testing additionally permits fitness care specialists to locate prediabetes. Making lifestyle adjustments to lose a modest quantity of weight in case you are obese can also additionally assist you to postpone or save you kind 2 diabetes.


Blood checks assist fitness care specialists to diagnose diabetes and prediabetes.

Type 1 diabetes

Most often, checking out for kind 1 diabetes takes place in human beings with diabetes signs and symptoms. Doctors commonly diagnose kind 1 diabetes in youngsters and younger adults. Because kind 1 diabetes can run in families, an examination known as TrialNet gives loose checking out to own circle of relatives individuals of human beings with the disease, even though they don’t have signs and symptoms.

Type 2 diabetes

Experts suggest recurring checking out for kind 2 diabetes in case you

are age forty-five or older
are among the while of nineteen and 44, are obese or overweight, and feature one or extra different diabetes threat elements
are a female who had gestational diabetes1
Medicare covers the value of diabetes checks for human beings with positive threat elements for diabetes. If you’ve got Medicare, discover in case you qualify for insurance External hyperlink. If you’ve got exclusive coverage, ask your coverage organization if it covers diabetes checks.

Though kind 2 diabetes most customarily develops in adults, youngsters can also expand kind 2 diabetes. Experts suggest checking out youngsters among the while of 10 and 18 who’re obese or overweight and feature at the least different threat elements for growing diabetes.1

low birth weight

a mom who had diabetes even as pregnant with them
any threat element referred to in Risk Factors for Type 2 Diabetes
Gestational diabetes
All pregnant girls who do now no longer have a previous diabetes prognosis ought to be examined for gestational diabetes. If you’re pregnant, you may take a glucose venture check between 24 and 28 weeks of pregnancy.1

What checks are used to diagnose diabetes and prediabetes?

Health care specialists most customarily use the fasting plasma glucose (FPG) check or the A1C check to diagnose diabetes. In a few cases, they’ll use random plasma glucose (RPG) checks.

Fasting plasma glucose (FPG) check

The FPG blood check measures your blood glucose degree at an unmarried factor in time. For the maximum dependable consequences, it’s far quality to have this check withinside the morning, once you are rapid for at the least eight hours. Fasting manner having not anything to consume or drink besides sips of water.

A1C check

The A1C check is a blood check that gives your common tiers of blood glucose over the last three months. Other names for the A1C check are hemoglobin A1C, HbA1C, glycated hemoglobin, and glycosylated hemoglobin check. You can consume and drink earlier than this check. When it involves the usage of the A1C to diagnose diabetes, your medical doctor will keep in mind elements consisting of your age and whether or not you’ve got anemia NIH outside hyperlink or some other hassle together along with your blood.1 The A1C check isn’t always correct in human beings with anemia.

If you’re of African, Mediterranean, or Southeast Asian descent, your A1C check consequences can be falsely excessive or low. Your fitness care expert can also additionally want to reserve an exclusive kind of A1C check.

Your fitness care expert will file your A1C check result as a percentage, consisting of an A1C of seven percent. The better the percentage, the better your common blood glucose tiers.

People with diabetes additionally use records from the A1C check to assist control their diabetes.

Random plasma glucose (RPG) check

Sometimes fitness care specialists use the RPG check to diagnose diabetes while diabetes signs and symptoms are gifts and that they do now no longer need to attend till you’ve got fasted. You do now no longer want to rapid in a single day for the RPG check. You can also additionally have this blood check at any time.

What checks are used to diagnose gestational diabetes?

Pregnant girls can also additionally have the glucose venture check, the oral glucose tolerance check, or both. These checks display how nicely your frame handles glucose.

Glucose venture check

If you’re pregnant and a fitness care expert is checking you for gestational diabetes, you can first obtain the glucose venture check. Another call for this check is the glucose screening check. In this check, a fitness care expert will draw your blood for 1 hour once you drink a candy liquid containing glucose. You do now no longer want to rapid for this check. If your blood glucose is simply too excessive—a hundred thirty-five to one hundred forty or extra—you can want to go back for an oral glucose tolerance check even as fasting.

Oral glucose tolerance check (OGTT)

The OGTT measures blood glucose once you are rapid for at least eight hours. First, a fitness care expert will draw your blood. Then you may drink the liquid containing glucose. For diagnosing gestational diabetes, you may want your blood drawn each hour for two to a few hours.

High blood glucose tiers at any or extra blood check instances in the course of the OGTT—fasting, 1 hour, 2 hours, or three hours—imply you’ve got gestational diabetes. Your fitness care group will explain what your OGTT consequences imply.

Health care specialists can also use the OGTT to diagnose kind 2 diabetes and prediabetes in folks that aren’t pregnant. The OGTT facilitates fitness care specialists stumble on kind 2 diabetes and prediabetes higher than the FPG check. However, the OGTT is an extra costly check and isn’t always as clean to give. To diagnose kind 2 diabetes and prediabetes, a fitness care expert will want to attract your blood 1 hour once you drink the liquid containing glucose and once more after 2 hours.

What do check numbers inform me if I even have diabetes or prediabetes?

Each check to stumble on diabetes and prediabetes makes use of an exclusive measurement. Usually, the equal check approach desires to be repeated on a 2d day to diagnose diabetes. Your medical doctor might also use a 2d check approach to verify which you have diabetes.


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