U-100: See unit of insulin.
Ulcer: A break in the skin; a deep sore. People with diabetes may develop ulcers from minor scrapes on the feet or legs, from cuts that heal slowly, or from the rubbing of shoes that don't fit well. Ulcers can become infected and should be treated promptly.
Ultralente insulin: A type of insulin that is long acting, usually the action of this type of insulin works for 25-36 hours after injection. This type of insulin has an onset of action four to five hours after injecting and works most powerfully at eight to 14 hours after injection.
Unit of insulin: The basic measure of insulin. U-100 is the most common concentration of insulin. U-100 means that there are 100 units of insulin per milliliter (ml) of liquid. For the occasional patient that has severe insulin resistance insulin is available as a U-500 form.
Unstable diabetes: See brittle diabetes.
Urine testing: Checking urine to see if it contains ketones. If you have type 1 diabetes, are pregnant and have diabetes, or have gestational diabetes, your doctor may ask you to check your urine for ketones. This is an easy test done at home with a dipstick measure.
Urologist: A doctor who specializes in treatment of the urinary tract for men and women, as well as treatment of the genital organs for males.
In type 2 diabetes, the body stops responding efficiently to insulin, a hormone that controls blood sugar. To compensate for the insensitivity to insulin, many diabetes drugs work by boosting insulin levels; for example, by injecting more insulin or by increasing the amount of insulin secreted from the pancreas. The new study, published in the June 9 issue of PLoS ONE, showed that a different approach could also be effective for treating diabetes — namely, blocking the breakdown of insulin, after it is secreted from the pancreas.
Yesterday, I heard a patient advocate say he was thankful for diabetes. He said, “If I had to choose a disease, type 1 diabetes isn’t a bad choice. Sometimes I feel thankful for having it.” The 40-something who said this was speaking on the radio as I was driving. I nearly swerved off the road.