| Medical Dictionary |
A Medical Dictionary of Medical Terminology
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Blood glucose, or blood sugar, is the main sugar found in your blood. It is your body's primary source of energy. It comes from the food you eat. Your body breaks down most of that food into glucose and releases it into your bloodstream. When your blood glucose goes up, it signals your pancreas to release insulin. Insulin is a hormone that helps the glucose get into your cells to be used for energy.
For people with diabetes, your body doesn't make enough insulin, can't use it as well as it should, or both. Too much glucose stays in your blood and doesn't reach your cells.
What is hypoglycemia?Hypoglycemia means low glucose. It happens when the level of glucose in your blood drops below what is healthy for you:
Hypoglycemia is common in people who have diabetes type 1 or who have diabetes type 2 and take insulin or other diabetes medicines. It can happen:
Although it's rare, you can still get low blood glucose without having diabetes. The causes can include conditions such as liver disease, kidney disease, and hormone deficiencies (lack of certain hormones). It can also happen in people who have had certain types of weight loss surgery. Some medicines, such as certain heart medicines and antibiotics, can also cause it. See your health care provider to find out the cause of your low blood glucose and how to treat it.
What are the symptoms of hypoglycemia?The symptoms of low blood glucose tend to come on quickly. The symptoms can be different for everyone, but they may include:
If you have diabetes, you'll most likely need to check your blood glucose every day and make sure that it's not too low. You can do this with a blood glucose meter or continuous glucose monitoring (CGM) system.
There are also blood tests that providers can use to check if your blood glucose is too low.
If you don't have diabetes and you have hypoglycemia, your provider will likely order other tests to try to figure out the cause.
What are the treatments for hypoglycemia?If you have mild or moderate hypoglycemia, eating or drinking something with carbohydrates can help. But severe hypoglycemia can cause serious complications, including passing out, coma, or even death. Severe hypoglycemia can be treated with glucagon, a hormone that raises blood glucose levels. It can be given as nasal spray or injection. If you have diabetes, your provider can prescribe you a glucagon kit for use in case of an emergency.
If you have diabetes and you often have mild or moderate low blood glucose, your health care team may make changes to your diabetes meal plan, physical activity plan, and/or diabetes medicines.
If you don't have diabetes and you keep having low blood glucose, the treatment will depend on what is causing it to happen.
Can hypoglycemia be prevented?If you have diabetes and you take insulin or other medicines that lower blood glucose, you can help prevent hypoglycemia if you:
The pancreas is a large gland behind the stomach and close to the first part of the small intestine. It secretes digestive juices into the small intestine through a tube called the pancreatic duct. The pancreas also releases the hormones insulin and glucagon into the bloodstream.
Pancreatitis is inflammation of the pancreas. It happens when digestive enzymes start digesting the pancreas itself. Pancreatitis can be acute or chronic. Either form is serious and can lead to complications.
Acute pancreatitis occurs suddenly and usually goes away in a few days with treatment. It is often caused by gallstones. Common symptoms are severe pain in the upper abdomen, nausea, and vomiting. Treatment is usually a few days in the hospital for intravenous (IV) fluids, antibiotics, and medicines to relieve pain.
Chronic pancreatitis does not heal or improve. It gets worse over time and leads to permanent damage. The most common cause is heavy alcohol use. Other causes include cystic fibrosis and other inherited disorders, high levels of calcium or fats in the blood, some medicines, and autoimmune conditions. Symptoms include nausea, vomiting, weight loss, and oily stools. Treatment may also be a few days in the hospital for intravenous (IV) fluids, medicines to relieve pain, and nutritional support. After that, you may need to start taking enzymes and eat a special diet. It is also important to not smoke or drink alcohol.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
Diabetes is a disease in which your blood glucose, or blood sugar, levels are too high. Glucose comes from the foods you eat. Insulin is a hormone that helps the glucose get into your cells to give them energy. With type 1 diabetes, your body does not make insulin. With type 2 diabetes, the more common type, your body does not make or use insulin well. Without enough insulin, the glucose stays in your blood. You can also have prediabetes. This means that your blood sugar is higher than normal but not high enough to be called diabetes. Having prediabetes puts you at a higher risk of getting type 2 diabetes.
Over time, having too much glucose in your blood can cause serious problems. It can damage your eyes, kidneys, and nerves. Diabetes can also cause heart disease, stroke and even the need to remove a limb. Pregnant women can also get diabetes, called gestational diabetes.
Blood tests can show if you have diabetes. One type of test, the A1C, can also check on how you are managing your diabetes. Exercise, weight control and sticking to your meal plan can help control your diabetes. You should also monitor your blood glucose level and take medicine if prescribed.
NIH: National Institute of Diabetes and Digestive and Kidney Diseases
Your endocrine system includes eight major glands throughout your body. These glands make hormones. Hormones are chemical messengers. They travel through your bloodstream to tissues or organs. Hormones work slowly and affect body processes from head to toe. These include:
If your hormone levels are too high or too low, you may have a hormone disorder. Hormone diseases also occur if your body does not respond to hormones the way it is supposed to. Stress, infection and changes in your blood's fluid and electrolyte balance can also influence hormone levels.
In the United States, the most common endocrine disease is diabetes. There are many others. They are usually treated by controlling how much hormone your body makes. Hormone supplements can help if the problem is too little of a hormone.
The pancreas is a gland behind your stomach and in front of your spine. It produces the juices that help break down food and the hormones that help control blood sugar levels. Pancreatic cancer usually begins in the cells that produce the juices. Some risk factors for developing pancreatic cancer include:
Pancreatic cancer is hard to catch early. It doesn't cause symptoms right away. When you do get symptoms, they are often vague or you may not notice them. They include yellowing of the skin and eyes, pain in the abdomen and back, weight loss and fatigue. Also, because the pancreas is hidden behind other organs, health care providers cannot see or feel the tumors during routine exams. Doctors use a physical exam, blood tests, imaging tests, and a biopsy to diagnose it.
Because it is often found late and it spreads quickly, pancreatic cancer can be hard to treat. Possible treatments include surgery, radiation, chemotherapy, and targeted therapy. Targeted therapy uses drugs or other substances that attack specific cancer cells with less harm to normal cells.
NIH: National Cancer Institute
The pancreas is a gland behind your stomach and in front of your spine. It produces juices that help break down food and hormones that help control blood sugar levels. Problems with the pancreas can lead to many health problems. These include:
The pancreas also plays a role in diabetes. In type 1 diabetes, the beta cells of the pancreas no longer make insulin because the body's immune system has attacked them. In type 2 diabetes, the pancreas loses the ability to secrete enough insulin in response to meals.