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U
ulcer - sore on the skin surface or on the stomach lining.
ultraviolet radiation - invisible rays that come from
the sun. UV radiation can damage the skin and cause melanoma and other
types of skin cancer.
upper GI endoscopy - examining into the esophagus, stomach,
and duodenum with an endoscope. (See also endoscopy.)
upper limb tension test (ULTT) - test to assess pain.
urea breath test - test used to detect Helicobacter pylori
infection. The test measures breath samples for urease, an enzyme H. pylori
produces.
ureters - two tubes that carry urine from the kidneys
to the bladder.
urethra - narrow channel through which urine passes from
the bladder out of the body.
urge incontinence - the inability to hold urine long
enough to reach a restroom.
urgent surgery - an operation performed immediately as
a result of an urgent medical condition. (See also emergency surgery.)
urinary retention - the inability to empty the bladder.
Usher’s syndrome - a hereditary disease that affects
hearing and vision.
uterus (Also called the womb.) - the uterus is a hollow,
pear-shaped organ located in a woman's lower abdomen, between the bladder
and the rectum, that sheds its lining each month during menstruation and
in which a fertilized egg implants and grows into a fetus.
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