A glucose screening test is a routine test during pregnancy that pregnant women check blood glucose (sugar) levels.
Gestational diabetes is high blood sugar () that starts or discovered during pregnancy.
TWO-STEP TEST
During the first step, you will have a glucose test screening:
If your blood glucose from the first step is too high, you will need to come back for a 3 hour tolerance test glucose. For this test:
ONE-STEP TEST
You need to go to the lab one to two hour glucose tolerance test. For this test:
For both tests the two-step or one-step test, eat your normal diet in the days prior to your exam. Ask your health care provider if any of the medications you take can affect your test results.
Most women do NOT have the side effect of the glucose tolerance test. Drinking the glucose solution similar to a soda is very sweet. Some women may feel nausea, sweating, or dizziness after they drank a glucose solution. serious side effects of these tests are very rare.
This test checks. Most pregnant women have a glucose screening test between 24 and 28 weeks of pregnancy. testing can be done earlier if you have a high level of glucose in your urine during a routine prenatal visit you, or if you have a high risk for diabetes.
Women who have a low risk for diabetes may not have a screening test. To be a low-risk, all of these statements must be true:
TWO-STEP TEST
Most of the time, with normal results for glucose screening test blood sugar is equal to or less than 140 mg / dL (7.8 mmol / L) 1 hour after drinking the glucose solution. A normal result means that you DO NOT have gestational diabetes
Note :. Mg / dL means milligrams per deciliter and mmol / L means millimoles per liter. These are two ways to show how much glucose in the blood.
If your blood glucose is higher than 140 mg / dL (7.8 mmol / L), the next step is the oral glucose tolerance test. This test will show if you have gestational diabetes. Most women (about 2 out of 3) who took this test does NOT have gestational diabetes.
ONE-STEP TEST
If your glucose levels lower than abnormal results described below, you do not have gestational diabetes
TWO-STEP testing
abnormal blood values for a 3-hour 100-gram oral glucose tolerance test is :.
ONE -Step testing
abnormal blood values for a 2-hour 75-g oral glucose tolerance test are:
If only one of the results of your blood glucose test oral glucose tolerance is higher than normal, your carrier may only recommend that you change some of the foods you eat. Then, the operator can test you again after you've changed your diet.
If more than one result of your blood glucose is higher than normal, you have gestational diabetes.
You may have some of the symptoms listed above under the heading entitled "How the Test will Feel."
There is little risk involved with having your blood taken. The veins and arteries vary in size from one person to another and from one side of the body. Take a blood sample from some people may be more difficult than from others
Another risk associated with after blood is drawn are slight, but may include :.
Oral glucose tolerance test - pregnancy; OGTT - pregnancy; Glucose challenge test - pregnancy; Gestational diabetes - glucose screening
American Diabetes Association. Standards of medical care in diabetes - 2018: 2. Classification and diagnosis of diabetes. Diabetes Care. 2018 January; 41 (Suppl 1): S13-S27. PMID 29222373
Practice Committee Bulletin -. Obstetrics. Practice Bulletin No. 190: Gestational diabetes mellitus. Obstet Gynecol. 2018; 131 (2): E49-E64. PMID :. 29370047
Landon MB, PM Catalano, Gabbe SG. Diabetes mellitus complications of pregnancy. In: Gabbe SG, Niebyl JR, Simpson JL, et al, eds. Obstetrics: Normal and Problem Pregnancy. ed 7. Philadelphia, PA: Elsevier Saunders; 2017 :. Chap 40
Metzger BE. Diabetes mellitus and pregnancy. In: Jameson JL, De Groot LJ, de Kretser DM, et al, eds. Endocrinology: Adults and Children. ed 7. Philadelphia, PA: Elsevier Saunders; 2016 :. Chap 45
Updated by: John D. Jacobson, MD, Professor of Obstetrics and Gynecology, Loma Linda University School of Medicine, Loma Linda Fertility Center, Loma Linda, CA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and A.D.A.M. that EdiTorial team.
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