Sunday, 17 June 2012
Renal failure and the volume of urine
As we all know, every day, we need to excrete urine, then, what is the relationship between urine volume and patients suffered from renal failure. In general, the normal volume of urine per day is 1500 - 2000 ml, and abnormal conditions, what is the polyuria, oliguria, anuria, proteinuria, hematuria?
Polyuria: the volume> 2500ml, excretion of urine has some regularity, the urine volume should be during the day than at night, the ratio of 2-3:1. If the increase in nocturnal enuresis, it is a sign of dysfunction of the renal tubular urination.
Oliguria: the volume <400, this is one of the symptoms of kidney failure.
The anuria: the volume <100, the kidneys can not be excreted waste and toxins in the urine, can not regulate the stability and balance of water, electrolytes and internal environment. This is one of the symptoms of kidney failure.
Proteinuria: because of the role of filtering the renal glomerular filtration membrane and the role of renal tubular reabsorption, healthy human urine contains only small amounts of protein, the daily excretion is less than 150 mg. When proteins in the urine increased, the routine examination of urine can be measured, called proteinuria. This is one of the symptoms of kidney failure.
The hematuria: Generally, 0-1 red blood cell / high power field, this is normal. When microscopic examination showed urinary red blood cells is greater than 3 / Hp is diagnosed hematuria. This is one of the symptoms of kidney failure.