What are the conditions that cause oliguria?

Generally, the 24-hour urine output of a normal person is between 1500 ml and 2500 ml, and if the urine output is less than 500 ml in 24 hours, it is called oliguria. Oliguria is often a sign of some serious illness in medicine. Disorders that present with oliguria are:

1. Diseases of the kidneys themselves. Such as acute nephritis, kidney tumor, severe renal tuberculosis, renal failure, etc. Urine output decreases due to impaired kidney function, and when these disorders cause oliguria, the condition is often more severe.

2. Reduced blood flow to the kidneys. When the patient suffers from excessive blood loss, shock, heart failure, severe dehydration, etc., the blood flow into the kidneys is significantly reduced, so that the kidneys produce functional failure and oliguria.

3. Urinary tract obstruction. Blockage of ureters and renal pelvic stones, blood clots, and pus clots prevents urine from entering the bladder. If the cause of the obstruction is not removed in time, it will cause hydronephrosis in the kidneys over time and affect kidney function.

1. Diseases of the kidneys themselves: such as acute nephritis, kidney tumors, severe renal tuberculosis, and renal failure.

2. Reduced blood flow to and from the kidneys: excessive blood loss due to trauma, shock, heart failure, severe dehydration.

3. Urinary tract obstruction:

Due to renal hypoperfusion due to various reasons, the glomerular filtration rate decreases sharply, which is called prerenal oliguria and anuria.

1) Volume depletion: Functional oliguria begins with anuria, and urine output is restored immediately once the blood volume is replenished; If it cannot be diagnosed in time, it can cause organic kidney damage, acute renal failure, manifesting as oliguria and anuria, and can be seen in severe dehydration, massive bleeding, and extensive burns.

2) Shock: Shock of various causes reduces renal perfusion pressure and seriously insufficient glomerular filtration rate. It is seen in anaphylactic shock, hemorrhagic shock, cardiogenic shock, infectious toxic shock, etc.

3) Decreased stroke volume: At this time, the blood supply to the kidneys decreases significantly, which is seen in left heart failure, severe arrhythmia, cardiac tamponade and constrictive pericarditis.

4) Hepatorenal syndrome: advanced cirrhosis, severe ascites, severe renal hypoperfusion manifests oliuria, anuria, once cirrhosis ascites is relieved, the kidney can be restored, and urine output increases.

The first is diabetes, which is also a relatively high incidence of disease. The typical symptom of diabetes is three more and one less. That is, polydipsia, polyphagia and polyuria, accompanied by weight loss, the diagnosis can be confirmed by checking fasting blood glucose.

Second, during the polyuria phase of kidney failure, there will also be an abnormal increase in urine output. At this time, with the increase of urine output, there will be a disorder of water, electrolyte and acid-base balance in the body, and attention should be paid to examination and supplementation. Thirdly, diabetes insipidus can also cause polyuria, and the amount of urine can be very, very high.

Diabetes insipidus is caused by too much urinary hormone secreted by the pituitary gland.

If there is a lot of urine, it may be that the body's excretion function is better, and the water you drink will be eliminated directly, so it should be a kidney problem.

Excessive urination is most common in diabetes, where it is definitely polyuria because you drink a lot of water when you are thirsty.

How much can you cause bifurcation or other problems.

Clinically reverted to 24-hour urine output less than.

Making 400ml is called oliguria.

A 24-hour urine output of less than 100ml is called duanuria. The causes of oliguria and anuria can be divided into three main categories: (DAO1) Prerenal:

Such as heart failure, shock, severe hypoproteinemia, liver disease, severe dehydration, etc. It is mainly due to renal hypoperfusion and decreased glomerular filtration. (2) Nephral:

The most common ones are acute nephritis, acute tubular necrosis, uremia, acute renal failure, lupus nephritis, etc. This is mainly due to impaired filtration of the glomeruli and/or tubular necrosis, swelling and blockage, resulting in the inability to produce urine. (3) Post-renal:

Such as bilateral kidney stones, bladder stones, bladder tumors, idiopathic retroperitoneal hyperplasia, etc. Strictly speaking, some postrenal causes cannot be said to be oliguria or anuria, such as urethral blockage caused by bladder stones, unable to urinate, not because the kidneys do not produce urine, but because the urine is retained in the bladder and cannot be discharged, which is mistaken for the kidneys that do not produce urine. If the blockage lasts too long, it can also cause injury to the kidneys and do not produce urine.

The longer oliguria and anuria last, the worse the prognosis and can even cause irreversible damage.

Nephritis, drinking less water, sweating more.