Category: U
-
Ureotelic
Concerning animals that excrete amino nitrogen in the form of urea. Included in this group are mammals. The tube that carries urine from the kidney to the bladder. It originates in the pelvis of the kidney and terminates in the posterior base of the bladder. Each kidney has one ureter measuring from 28 to 34…
-
Uremigenic
Caused by or producing uremia.
-
Urelcosis
Ulceration of the urinary tract.
-
Urea-reduction ratio
The relative decrease (or clearance) of blood urea nitrogen during hemodialysis. The ratio is a measure of the adequacy of renal replacement. The failure to achieve an adequate ratio leads to increased morbidity and mortality among renal failure patients.
-
Ureaplasma urealyticum
A mycoplasma that is usually sexually transmitted. It may cause inflammation of the reproductive or urinary tracts in males and females. It has been implicated in a wide variety of infections in babies with low birth weight.
-
Ureametry
Determination of the amount of urea in urine.
-
Urea frost
White flaky deposits of urea seen on the skin in patients with advanced uremia.
-
Urea cycle disorder
One of six inherited disorders in which an enzyme in the urea cycle is missing or nonfunctional, resulting in the accumulation of excess ammonia in the bloodstream. Lethargy, failure to thrive, nausea and vomiting, encephalopathy, and coma are common symptoms, especially in the newborn period.
-
Urea balance test
A test of kidney function performed by measuring intake and output of urea.
-
Urban legend
Urban legends about health care are widely disseminated by patients and practitioners. One favorite is the internet prank that states that dihydrogen monoxide is a deadly toxin widely consumed by human beings. Its chemical formula is H20.