Diabetes - Gestational
Gestational Diabetes is the most common pregnancy complication. Diabetes is a disease that affects how the body uses glucose, a sugar that is a source of fuel. Normally, insulin, a hormone, helps glucose get into the body cells where it is used for energy. Women with Gestational Diabetes either do not produce enough insulin or the insulin does not work like it should. As a result, glucose does not get into the body cells. Too much sugar in the blood can make people ill and result in medical complications.
There are different types and causes of diabetes. Gestational Diabetes is a temporary condition that occurs in a small percentage of women during pregnancy. Uncontrolled Gestational Diabetes is dangerous to both the mother and the fetus. However, when blood glucose levels are closely controlled, women with Gestational Diabetes can have healthy pregnancies and healthy babies.
Insulin is a hormone that is produced by the beta cells in your pancreas. Your pancreas is a gland located near your stomach that produces chemicals for food digestion. Insulin regulates the amount of glucose in your blood in a continual process. When you eat, the amount of glucose in your bloodstream rises. In response to the elevated blood glucose level, your beta cells produce insulin. The insulin moves the glucose out of the bloodstream and into your cells. In turn, a lower level of glucose is left in the blood stream. To prevent your blood glucose level from getting too low, your body signals you to eat. This starts the process again so that your body cells continually receive the energy that they need.
Your doctor will test your urine for glucose and ketones. Ketones are acids that accumulate in the blood and appear in urine when the body does not have enough insulin. The tests are simple to conduct. Test strips are simply placed in your urine sample. Your doctor will read the results after a short period of time.
Your doctor can also determine if you have diabetes by conducting blood glucose tests. The Fasting Plasma Glucose Test (FPG) or the Oral Glucose Tolerance Test (OGTT) are commonly used. The FPG measures blood glucose levels after you have fasted or not eaten for a period of time. The OGTT test measures blood glucose levels after fasting and again a few hours after you drink a high-glucose beverage. The FPG and the OGTT test indicate your blood glucose level for one time on a given day.
Because blood glucose levels fluctuate from day to day, your doctor can also test how your blood glucose levels have been over a period of three months. To do so, your doctor will use an A1C test, also called glycated hemoglobin or HbA1c test. The A1C test measures how much extra glucose has glycated or attached to your red blood cells over the last 120 days, the lifespan of a red blood cell.
Depending on the results of your blood test, you may need to inject yourself with insulin. The insulin will help to control your blood glucose levels. Your doctor will let you know how much insulin to use. It will depend on your weight, what you eat, and how active you are. As your pregnancy progresses, the placenta will produce more hormones, and you may need to use more insulin. Your doctor will let you know how much more to use, based on the records in your logbook.
You may also need to check your urine, according to your doctor’s instructions. You should test your urine for ketones when your blood glucose level is high. Urine testing involves placing test strips in your urine sample and reading the results after a short period of time.
Managing Gestational Diabetes also includes a nutritional component. Your doctor or a registered nutritionist can help you plan what to eat to help regulate your blood glucose levels and weight. It can be helpful to eat several small meals throughout the day. Your health care professional can help you learn to make good food selections, read nutrition labels, measure portion sizes, and plan well-balanced meals.
Exercise is another important element for managing Gestational Diabetes. Exercise may help to lower your blood glucose level, blood pressure, and cholesterol. It also may help your body to use insulin better. All pregnant women should consult with their doctor prior to beginning an exercise program. Your doctor will let you know how much to exercise and the type of exercises that are safe for you.
In addition to managing your blood sugar, eating smart, and exercising, you should also maintain appropriate cholesterol and blood pressure levels. It is important not to smoke. Not only is smoking unhealthy for your developing baby, but smoking can also increase blood sugar levels and contribute to the development of medical complications.
Treatment for Gestational Diabetes can prevent symptoms from happening. However, even with treatment, some problems associated with Gestational Diabetes may occur. These conditions include hyperglycemia, ketoacidosis, and hypoglycemia.
Hyperglycemia, also called high blood glucose, happens occasionally to people with diabetes. Untreated hyperglycemia can lead to medical complications. Hyperglycemia can occur for many reasons. Women with Gestational Diabetes may experience it if their body is not using insulin effectively, if they do not have enough insulin, or if they ate more than planned and exercised less than planned.
The warning signs and symptoms of hyperglycemia include high blood glucose levels, high levels of sugar in the urine, frequent urination, and increased thirst. You should follow your doctor’s instructions for treating hyperglycemia as soon as you detect high blood sugar levels or ketones in your urine—this is very important. If you fail to do so, ketoacidosis could occur. If you have ketones in your urine, do not exercise. Exercising will only make the situation worse.
Ketoacidosis is a serious condition—it can lead to diabetic coma or death. Ketones are acids that accumulate in the blood when your body breaks down fats. Your body releases ketones through urine. Ketones appear in urine when the body does not have enough insulin. Ketoacidosis occurs when all of the ketones cannot be released through urine and the amount of ketones remaining in the blood becomes high enough to poison the body. Ketoacidosis usually develops slowly, but when vomiting occurs, the condition can develop in just a few hours.
The first symptoms of ketoacidosis include thirst, dry mouth, frequent urination, high blood glucose levels, and high levels of ketones in the urine. These symptoms are followed by dry or flushed skin; continual tiredness; nausea, abdominal pain, or vomiting; difficulty breathing; impaired attention span or confusion; and fruity smelling breath. If you have any of the symptoms contact your doctor immediately; call emergency services, usually 911; or go to the nearest emergency room. Treatment for ketoacidosis usually involves a hospital stay.
You can help prevent ketoacidosis by monitoring yourself for warning signs and checking your urine and blood regularly. Follow your doctor’s instructions if you detect high levels of ketones. If you have high levels of ketones, do not exercise. Exercise increases the levels of ketones.
Hypoglycemia, also called low blood sugar or insulin reaction, is not always preventable. Hypoglycemia can occur even if you do everything that you can to manage your diabetes. Symptoms of hypoglycemia include shakiness, dizziness, sweating, hunger, headache, pale colored skin, sudden moodiness, clumsiness, seizure, poor attention span, confusion, and tingling sensations around your mouth.
Check your blood if you suspect that your blood glucose level is low. You should treat hypoglycemia immediately. The quickest way to treat hypoglycemia is to raise your blood sugar level with some form of sugar—glucose tablets, fruit juice, or hard candy. Ask your doctor for a list of appropriate foods. Once you have checked your blood glucose level and treated your hypoglycemia, repeat the process again until your signs and symptoms have cleared.
It is important to treat hypoglycemia immediately or you could pass out. If you pass out, you need immediate treatment. You should receive an injection of glucagon. Glucagon is a medication that raises blood sugar. You should tell those around you how and when to use it. If glucagon is not available, you need emergency medical assistance. Someone should take you to the emergency room or call emergency medical services, usually 911. If you pass out from hypoglycemia, you should not inject insulin or consume food or fluids.
Usually, blood glucose levels return to normal following the childbirth. This is because the placenta, which was producing the hormones that caused insulin resistance, is delivered. Your doctor will check to make sure that your blood sugar levels have returned to normal. Additionally, your doctor will test you for diabetes several weeks after your delivery. You should also be tested for Type 2 Diabetes in the future. Women who develop Gestational Diabetes during pregnancy are at a higher risk for developing Type 2 Diabetes as they age.
The insulin will help to control your blood glucose levels. Your doctor will let you know how much insulin to use. It will depend on your weight, what you eat, and how active you are. As your pregnancy progresses , the placenta will produce more hormones, and you may need to use more insulin. Your doctor will let you know how much more to use, based on the records in your logbook.
Women who had Gestational Diabetes during pregnancy have an increased risk for developing Type 2 Diabetes in the future. These women should discuss their concerns with their doctors and be screened for Pre-Diabetes and Type 2 Diabetes. People may reduce their risk of developing Type 2 diabetes by maintaining a healthy weight, exercising, and eating healthy.
Additionally, women that had Gestational Diabetes during pregnancy are at risk for developing it again in future pregnancies. Women that are planning on getting pregnant again should talk with their doctor. Making lifestyle changes before the next pregnancy may be helpful.
Am I at Risk
Many women who develop Gestational Diabetes have no known risk factors. Women who are
members of ethnic minority groups including African Americans, Native Americans, Hispanics,
Latinos, Asians, and Pacific Islanders develop Gestational Diabetes more frequently than
Caucasians. The following factors appear to increase the risk of developing Gestational Diabetes during pregnancy:
_____ A family history of diabetes is associated with an increased chance of developing Gestational Diabetes. If your parents, brothers, or sisters have diabetes your risk increases.
_____ Women that had Gestational Diabetes with a previous pregnancy are at risk for developing it with each future pregnancy.
_____ Women that are overweight before they become pregnant have an increased risk of developing Gestational Diabetes when they are pregnant.
_____ Having glucose in your urine, an impaired glucose tolerance, or impaired fasting glucose tolerance are risk factors for diabetes.
_____ Polyhydramnios, a condition when you have too much amniotic fluid, is a risk factor for diabetes.
_____ Previously giving birth to a stillborn baby or a baby that weighed more than nine pounds increases your risk for Gestational Diabetes during pregnancy.
If your blood glucose levels are out of control during pregnancy, the extra glucose can travel across the placenta and to your developing baby. In turn, the baby’s blood glucose level rises. This causes the developing baby to produce more insulin to get rid of the extra blood glucose. The excess glucose is stored as fat in the baby. The excess fat can lead to a condition called macrosomia, making the baby larger than normal.
Babies with macrosomia have an increased risk for damage to their shoulders during birth, breathing problems, and very low blood glucose levels at birth. Your baby’s blood glucose level will be tested immediately after birth. If your baby’s blood glucose level is low, your baby will be given sugar water and sent to the neonatal intensive care unit for observation for a short period of time. The medical staff will monitor the baby for signs of a low blood glucose reaction.
Babies with mothers who had Gestational Diabetes have a higher risk of developing jaundice. Jaundice is a yellow discoloration of the skin, eyes, and mucous membranes. Jaundice occurs when there is too much bilirubin in the baby’s blood. Bilirubin is released when too many red blood cells accumulate in the blood. Jaundice can be treated in a few days with light therapy. Light therapy involves exposing your baby to special lights for select periods throughout the day and night.
Babies with mothers who had Gestational Diabetes also have a higher risk for developing diabetes in the future. Babies with excess insulin are at risk for childhood obesity. Additionally, mothers that experienced Gestational Diabetes during one pregnancy have an increased risk for developing it again in future pregnancies. Further, mothers that experienced Gestational Diabetes have an increased risk for developing Type 2 Diabetes years later. People with Type 2 Diabetes produce insulin, but they either do not produce enough or the insulin does not work like it should. People with Type 2 Diabetes need to diligently manage their disease to remain healthy and reduce the risk of medical complications.
Again, Gestational Diabetes usually ceases shortly after delivery. However, for a few women, pregnancy uncovers Type 1 or Type 2 Diabetes. In some cases, it may be difficult to determine exactly what form of diabetes a woman has during pregnancy. After delivery, women with Type 1 or Type 2 Diabetes will need to continue treatment for diabetes.
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This information is intended for educational and informational purposes only. It should not be used in place of an individual consultation or examination or replace the advice of your health care professional and should not be relied upon to determine diagnosis or course of treatment.
The iHealthSpot patient education library was written collaboratively by the iHealthSpot editorial team which includes Senior Medical Authors Dr. Mary Car-Blanchard, OTD/OTR/L and Valerie K. Clark, and the following editorial advisors: Steve Meadows, MD, Ernie F. Soto, DDS, Ronald J. Glatzer, MD, Jonathan Rosenberg, MD, Christopher M. Nolte, MD, David Applebaum, MD, Jonathan M. Tarrash, MD, and Paula Soto, RN/BSN. This content complies with the HONcode standard for trustworthy health information. The library commenced development on September 1, 2005 with the latest update/addition on February 16, 2022. For information on iHealthSpot’s other services including medical website design, visit www.iHealthSpot.com.