Abnormally increased blood sugar. Usually increased or high blood glucose when typically >11.1 mmol/L; however, symptoms may not be noticeable until even higher values are reached, such as 15–20 mmol/L. A patient with a consistent range between ~5.6 and ~7 mmol/L is considered hyperglycemic, values >7 mmol/L are considered a state of diabetes. Chronic levels >7 mmol/L can produce organ damage.
High concentrations of glucose in the blood, usually associated with diabetes.
An imbalance of glucose levels (elevated level) caused by various factors. Signs and symptoms include fatigue, extreme thirst, frequent urination, hunger, blurred vision, and sudden weight loss.
Abnormally high levels of blood sugar.
Higher than normal levels of glucose in the blood.
Elevations of blood glucose, either from the various types of diabetes, excessive sugar intake (short term) or from adrenalin or stimulant causes.
A condition characterized by an abnormally high blood glucose level; it occurs in people with untreated or inadequately controlled diabetes.
Abnormally high levels of sugar in the blood.
An increase in the normal blood glucose level.
A condition in which there is a high than normal concentration of glucose in the blood.
Levels of glucose >120 mg/dL (6 mmol/L) in blood for a fasting individual.
Hyperglycemia is an elevation in the concentration of glucose in the blood above normal levels. Typically, when hyperglycemia occurs, insulin is released from the pancreas, which allows for the uptake of blood glucose by tissues such as muscle and adipose. When adequate insulin is not present or the body is not sensitive to its effects, hyperglycemia will likely not be transient. In some cases these conditions are referred to as type I and type II diabetes mellitus, respectively. For more information, see the entry for diabetes mellitus.
Abnormally high levels of glucose (a sugar used in the body for energy) in the blood, a common result of diabetes mellitus.
An excessive concentration of glucose in the bloodstream.
Higher than normal amount of glucose in the blood, most often associated with diabetes mellitus but sometimes occurring in other conditions.
An elevated blood sugar level, usually due to diabetes mellitus.
High blood sugar. Hyperglycemia may be caused by insulin resistance, by an insufficient supply of insulin from the pancreas, or by other factors involving the inability of the body to respond to insulin. Factors that contribute to hyperglycemia include overeating, inactivity, illness, stress, certain medications, and hormone disorders. Hyperglycemia may be mild or severe. The symptoms can vary and may include extreme thirst, frequent urination, fatigue, blurred vision, and unexplained weight loss.
An excess of glucose in the bloodstream. It may occur in a variety of diseases, most notably in diabetes mellitus, due to insufficient insulin in the blood and excessive intake of carbohydrates. Untreated it may progress to diabetic coma.
Abnormally high blood sugar levels. Hyperglycemia can cause numerous unwanted effects. It can impair wound healing; decrease the body’s ability to fight infections; worsen the neurological deficits found in stroke; increase the risk of death in critically ill patients; and damage the kidneys, peripheral nerves, retinae, blood vessels, and heart.
A condition characterized by too much sugar (glucose) in the blood.
Hyperglycemia is a medical state that arises when there is an excessive elevation in the level of glucose in the bloodstream, commonly referred to as blood sugar. This condition usually occurs due to a deficiency of insulin or an insufficiency of insulin to control the amount of glucose in the bloodstream. In healthy individuals, insulin helps to regulate glucose levels by aiding the transfer of glucose from the bloodstream into the cells for energy production. However, in people with hyperglycemia, the glucose levels remain elevated as the body is unable to convert the glucose into energy. If left untreated, hyperglycemia can lead to severe complications such as diabetic ketoacidosis, kidney damage, and cardiovascular disease.
A medical condition characterized by abnormally elevated levels of glucose in the bloodstream, hyperglycemia arises when the body either lacks sufficient insulin or is unable to effectively utilize the available insulin to convert glucose into energy. Hyperglycemia is often an indicator of uncontrolled diabetes.