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Doctor insights on: What Is A Glucose Tolerance Test For Gestational Diabetes

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Why do you need to get a glucose tolerance test if you tested positive for gestational diabetes?

Why do you need to get a glucose tolerance test if you tested positive for gestational diabetes?

To rule out diabetes: Women with gestational diabetes are more prone to developing diabetes after the pregnancy. Glucose tolerance test allows the doctor to asses resistance to Insulin and diagnose diabetes. ...Read more

Dr. Quang Nguyen
3,207 doctors shared insights

Diabetes (Definition)

Diabetes is a disease of increased blood glucose levels. Glucose is a type of sugar that comes from the intake of food. Insulin is a type of hormone that removes the glucose from the blood and moves it into the cells to provide them with energy. There are two different types of diabetes: type 1 and type 2. Type 1 diabetes is when the body does not make any insulin. Therefore, glucose stays inside the blood and does not move into the cells. Type 2 diabetes, which is commonly associated with obesity, is when the body is either resistant to the effects of insulin or when the body does not produce enough insulin. Increased levels of glucose in the body causes severe damage to the ...Read more


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Due to an eating disorder, I don't want to take the glucose tolerance test for gestational diabetes -50 g of sugar/ 200 calories. Any other options?

Due to an eating disorder, I don't want to take the glucose tolerance test for gestational diabetes -50 g of sugar/ 200 calories. Any other options?

Eating disorder: Let your doctor know your illness and get help so you will get better and give birth to a healthy child. You and the infant need you to be well. ...Read more

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Does everyone need a 3 hour glucose tolerace test for gestational diabetes?

Does everyone need a 3 hour glucose tolerace test for gestational diabetes?

Newer recommendation: Is that non-diabetic pregnant women undergo a 2-hour 75-gram oral glucose tolerance test at 24-28 weeks of gestation. Women should be fasting for this test, and a fasting glucose level should be included. If any one of the following values are abnormal, you have gestational diabetes: fasting at 92 or above (mg/dl), one-hour at 180 or above, two-hour at 153 or above. ...Read more

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Impaired glucose tolerance or gestational diabetes, what's the difference?

Impaired glucose tolerance or gestational diabetes, what's the difference?

Gestational diabetes: Is overt diabetes (hga1c 6.5 or higher, FBS 126 or more, post-prandial sugar > 200 anytime during pregnancy pre-diabetes id hga1c 5.7-6.4, FBS 100-125, ppg 140-199 2 hrs after eating, anytime, pregnant or not. ...Read more

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Impaired glucose tolerance or gestational diabetes, what's the relationship?

Impaired glucose tolerance or gestational diabetes, what's the relationship?

IGT and GDM: Hi. Impaired glucose tolerance (IGT) and gestational diabetes (GDM) both increase the risk of subsequent development of type 2 diabetes to pretty similar degrees. Both are indications for regular monitoring for the subsequent development of diabetes. Both are strong indications to adopt a healthy lifestyle (eat healthily and exercise regularly for life). ...Read more

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Whats the 3 hr glucose test for gestational diabetes?

Whats the 3 hr glucose test for gestational diabetes?

A Drink/Bloodwork: Some obs do this at their office, or you go to a lab. The test is done first thing in the morning after you have not eaten overnight. They draw your blood to check the "fasting" (pre-breakfast) blood sugar, then you drink a bottle of liquid with 75 grams of sugar. Blood is drawn at 1, 2, and 3 hours after the drink. If 2 of 4 levels are elevated then you'll be diagnosed with gestational diabetes. ...Read more

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Are there side effects during the 1-hr glucose challenge test for gestational diabetes?

Are there side effects during the 1-hr glucose challenge test for gestational diabetes?

No long lasting: Some people feels nauseated, slightly sick but no long lasting effects. ...Read more

Tolerance (Definition)

When one takes a drug, such as heroin or alcohol, repeatedly, 'tolerance' develops because more of the drug is needed to give the same effect on the body/brain; e.g. Liver enzymes r stimulated to metabolize the drug faster and faster. There may be a strong genetic predisposition to addiction, some studies suggesting that 1 of 10 people will become dependent on alcohol or some ...Read more


Blood Sugar (Definition)

The blood sugar concentration or blood glucose level is the amount of glucose (sugar) present in the blood of a human or animal. The body naturally tightly regulates blood glucose levels as a part of metabolic homeostasis. Glucose is the primary source of energy for the body's cells, and blood lipids (in the form of fats and oils) are primarily ...Read more