After resting for 2 hours, another blood sample is taken to see how your body is dealing with the glucose. The OGTT is done when you're between 24 and 28 weeks pregnant. If you've had gestational diabetes before, you'll be offered an OGTT earlier in your pregnancy, soon after your booking appointment, then another OGTT at 24 to 28 weeks if the first test is normal.
If you have gestational diabetes, the chances of having problems with your pregnancy can be reduced by controlling your blood sugar levels. Blood sugar levels may be reduced by changing your diet and exercise routine. However, if these changes don't lower your blood sugar levels enough, you will need to take medicine as well.
This may be tablets or insulin injections. You'll also be more closely monitored during your pregnancy and birth to check for any potential problems. If you have gestational diabetes, it's best to give birth before 41 weeks.
Induction of labour or a caesarean section may be recommended if labour does not start naturally by this time. Earlier delivery may be recommended if there are concerns about your or your baby's health or if your blood sugar levels have not been well controlled.
Find out more about how gestational diabetes is treated. What's the normal range for blood sugar? What is the glucose tolerance test? What is the glucose tolerance test like? I have the results of my glucose tolerance test. What's the normal range, and what's considered a high blood sugar level?
What is the two-hour glucose tolerance test, or one-step test? Will the glucose tests make me feel sick? Does glucose testing carry any risks? Is there anything I can do to help me pass the glucose tests? Can I skip taking glucose tests? What is the treatment for gestational diabetes? Here's what to expect during and after the test: A sweet drink: When you arrive for the test, you'll drink a sugar solution that contains 50 grams of glucose. The stuff tastes like a very sweet soda pop it comes in cola, orange, or lime flavor , and you have to get all of it down in five minutes.
Some providers keep it chilled or let you pour it over ice and drink it cold. A blood draw: An hour later, a blood sample is taken to check your blood sugar level. The result indicates how efficiently your body processes sugar. Results: These should be available in a few days. If the reading is too high, which happens an estimated 15 to 23 percent of the time, you'll be asked to return for a three-hour glucose tolerance test see below to see whether you have gestational diabetes.
The good news is that most women whose screening test shows elevated blood sugar don't turn out to have gestational diabetes. Here's what to expect at the lab: First blood draw: When you arrive for the test, a blood sample is taken to measure your fasting blood glucose level.
An even sweeter drink: Next, you'll drink either a more concentrated dose or a larger volume of glucose solution. Three more blood draws: Brace yourself for three more arm pricks, as your blood is tested every hour for the next three hours.
The lab tech should alternate arms each time your blood is drawn. Some tips to make your test more comfortable: Have someone drive you to and from the test in case you feel lightheaded or are low on energy due to fasting.
Bring something to distract you, because you have to stay nearby when your blood is not being drawn. Bring something to eat right after the final blood sample is taken, because you'll probably be starving. Sweet drink: Next, you'll drink a very sweet drink, which usually contains 75 grams of glucose. Two more blood draws: Your blood will be drawn at one hour and two hours after the drink. Results: If any of your blood sugar readings are abnormal you will be diagnosed with gestational diabetes.
As with any blood draw, there is a slight risk of: Feeling lightheaded or fainting Excessive bleeding Infection at the blood draw site, or buildup of blood under the skin Is there anything I can do to help me pass the glucose tests?
These are: Healthy eating : Opt for whole grains, fruits, and vegetables, which are high in fiber, and cut back on foods and drinks that are high in added sugars. During the test, the mother is asked to drink a sweet liquid glucose and then will have blood drawn one hour from having the drink, as blood glucose levels normally peak within one hour.
No fasting is required prior to this test. The test evaluates how your body processes sugar. A high level in your blood may indicate your body is not processing sugar effectively positive test.
If the results of this screen are positive, the woman may have the Glucose Tolerance Test performed. It is important to note that not all women who test positive for the Glucose Challenge Screening test are found to have diabetes upon further diagnosis.
Prior to the taking the glucose tolerance test, your doctor will ask you to make sure and eat at least mg of carbohydrates about what you will get from a slice or two of bread for three days prior to the time you will be asked to fast. You will not be permitted to eat or drink anything but sips of water for 14 hours prior to the test, so it is best to schedule the test for first thing in the morning. Additionally, you should plan to have someone drive you to and from the test since your energy levels may be low and there is a slight possibility you may feel light-headed.
You will be asked to drink a larger volume or more concentrated solution of the glucose drink than was used in the initial Glucose Challenge Screening test. Mayo Clinic. American Diabetes Association. Standards of medical care in diabetes — Diabetes Care. Masharani U. Diabetes mellitus and hypoglycemia. In: Current Medical Diagnosis and Treatment New York, N. American College of Obstetricians and Gynecologists. Practice Bulletin No. Glucose tolerance test About. Mayo Clinic Press Check out these best-sellers and special offers on books and newsletters from Mayo Clinic.
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