Oliguria

Oliguria

oliguria is a condition where too little urine are produced. a low production of urine can be the result of insufficient liquid being provided to the kidneys, damaged kidneys are not able to make urine, or a barrier which prevents urine from leaving the body. most common causes of oliguria they are, such as dehydration, which involves an inadequate supply of liquid reach the kidneys, and these are known as prerenal causes. treating oliguria usually involves correcting some of the underlying causes, if possible. if there is a risk for renal dialysis may be necessary where an artificial filter is used instead of the kidneys to remove waste products from the blood.
in the initial stages of renal failure, also known as acute kidney injury, the kidneys respond to their reduced liquid supply, by saving extra salt and water, and if the situation is reversed the urine flow may return to normal. If the situation persists, some kidney cells die in a condition known as acute tubular necrosis. where the damage is too extensive kidneys fail to produce a normal urine output even if the liquid load subsequently increases.
acute tubular necrosis is known as a kidney cause of oliguria, where there is damage to the kidney itself. diseases that cause kidney damage, certain drugs that are toxic to the kidneys, and blood infection, can all give rise to acute tubular necrosis. some of the causes leading to more severe kidney damage than others, and oliguria are only associated with the more severe forms. Well prerenal and renal causes of oliguria, the underlying problems are identified and treated to give kidneys best chance of recovery. which fluid loss is restored, and dialysis is used if necessary.
postrenal causes of oliguria, for urinary tract obstruction, often involve problems that a catheter is blocked. Catheters are flexible tubes used to drain urine from the bladder. in case of a blockage, urinary retention occurs, the person typically feels an urge to urinate, but it is not possible, and the onset of oliguria is relatively sudden. a blockage can be caused by urine collecting bag is located higher than the bladder, or by a kink in the pipe, in which case simple repositioning can solve the problem. If the inside of the pipe is connected by sediment or a clot catheter may need replacing.

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