Urine: Composition, Constituents and Deposits
Excretory system - Composition of urineand can free el diez de hoy de honduras
Essential Obstetric Practice pp Cite as. The advent of plastic strips that can be dipped into urine to detect the presence of protein, glucose, acetone and other abnormal constituents has considerably eased the task of those supervising prenatal care in some parts of the world. It is, of course, mandatory to test urine at every routine examination of the pregnant woman. The strips are useful for screening purposes, although with some a good eye for colour and the means for accurate timing are required! The importance in prenatal care lies more in ensuring that urine is examined satisfactorily than in the methods employed. Unable to display preview. Download preview PDF.
Before discussing about the abnormal constituents of urine we must have some of urine and the implication of their presence are discussed below in short.
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Urine is a liquid byproduct of the body secreted by the kidneys through a process called urination and excreted through the urethra. The normal chemical composition of urine is mainly water content, but it also includes nitrogenous molecules, such as urea, as well as creatinine and other metabolic waste components. Other substances may be excreted in urine due to injury or infection of the glomeruli of the kidneys, which can alter the ability of the nephron to reabsorb or filter the different components of blood plasma. Urine is sterile until it reaches the urethra, where epithelial cells lining the urethra are colonized by facultatively anaerobic gram-negative rods and cocci. Urea is essentially a processed form of ammonia that is non-toxic to mammals, unlike ammonia, which can be highly toxic. It is processed from ammonia and carbon dioxide in the liver.
Abnormal constituents of urine
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Principal manifestations or clinical features of the urinary tract disease. The major manifestations of U. Abnormalities of the urine composition. Abnormalities of the daily urine flow. Pain and dysuria. Uremia principal manifestation in renal failure. Rupture of the U.