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Reactive hypoglycemia

A fall in blood sugar which causes symptoms during the period following meals. Simply put, the body has trouble braking the secretion of insulin after a meal, resulting in the blood sugar dropping further than it should. Reactive hypoglycemia is different from spontaneous hypoglycemia, which is not assoicated with meal ingestion. Reactive hypoglycemia generally has a benign prognosis.

See also: Hypoglycemia.

Reagents, Reagent Strips

Terms no longer used for diabetes blood and urine glucose or acetone test strips.

Rebound

A swing to a high level of glucose (sugar) in the blood after having a low level.

See also: Somogyi effect.

Receptors

Areas on the outer part of a cell that allow the cell to join or bind with insulin that is in the blood.

See also: Insulin receptors.

Regular Insulin

A type of insulin that is fast acting.

Renal

A term that means having something to do with the kidneys.

Repaglinide

A pill taken to lower the level of glucose (sugar) in the blood. Only some people with noninsulin-dependent diabetes take these pills.

See also: Oral hypoglycemic agents

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Renal Glycosuria

Glycosuria occurring when there is a normal amount of sugar in the blood, due to an inherited inability of the kidneys to reabsorb glucose completely.

Renal Threshold

When the blood is holding so much of a substance such as glucose (sugar) that the kidneys allow the excess to spill into the urine. This is also called "kidney threshold," "spilling point," and "leak point."

Resistance to Insulin

See Insulin Resistance.

Retina

The center part of the back lining of the eye that senses light. It has many small blood vessels that are sometimes harmed when a person has had diabetes for a long time.

Retinopathy

A disease of the small blood vessels in the retina of the eye.

See also: Diabetic retinopathy.

Risk Factor

Anything that raises the chance that a person will get a disease. With noninsulin-dependent diabetes, people have a greater risk of getting the disease if they weigh a lot more (20 percent or more) than they should.

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Rosiglitazone

A drug used as a treatment for Type 2 (noninsulin-dependent) diabetes; belongs to a class of drugs called thiazolidinediones.

See also: Oral hypoglycemic agents.

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