urea

Examples of urea in the following topics:

• Chemical Composition of Urine

  • 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.
  • Urea is essentially a processed form of ammonia that is non-toxic to mammals, unlike ammonia, which can be highly toxic.
  • Describe how normal urine consists of water, urea, salts and pigment

• Renal Disease and Failure

  • Renal failure uremia is a syndrome of renal failure characterized by elevated levels of urea and creatinine in the blood.
  • This is detected by a decrease in or absence of urine production or determination of waste products (creatinine or urea) in the blood.
  • Renal failure uremia is a syndrome of renal failure that includes elevated blood urea and creatinine levels.

• Tubular Secretion

  • At this final stage it is only approximately one percent of the originally filtered volume, consisting mostly of water with highly diluted amounts of urea, creatinine, and variable concentrations of ions.

• Amnion Development

  • It contains less than two percent solids, and consists mainly of urea and other extractives, inorganic salts, a small amount of protein, and, frequently, a trace of sugar.

• Dialysis

  • The counter-current flow of the blood and dialysate maximizes the concentration gradient of solutes between the blood and dialysate, which helps to remove more urea and creatinine from the blood.
  • The concentrations of solutes (for example potassium, phosphorus, and urea) are undesirably high in the blood, but low or absent in the dialysis solution; constant replacement of the dialysate ensures that the concentration of undesired solutes is kept low on this side of the membrane.

• Overview of the Urinary System

  • Removal of metabolic waste products from the body (mainly urea and uric acid).
  • Nephrons are the main functional component inside the parenchyma of the kidneys, which filter blood to remove urea, a waste product formed by the oxidation of proteins, as well as ions like potassium and sodium.

• Pulmonary Edema

  • Blood tests are performed for electrolytes (sodium, potassium) and markers of renal function (creatinine, urea).

• Diagnostic Blood Tests

  • A basic metabolic panel measures sodium, potassium, chloride, bicarbonate, blood urea nitrogen (BUN), magnesium, creatinine, glucose, and sometimes includes calcium.

• Blood Plasma

  • Waste products are carried through the plasma during their removal, including urea and ammonia.

• Protection

  • These glands also help to excrete potentially dangerous substances, like urea, out of the body.