Renal failure is a relatively common type of kidney disease, which is generally divided into acute renal failure and chronic renal failure. What are the main ways to distinguish these two diseases? Experts have pointed out that these two types of renal failure can be distinguished by some performance characteristics. Let's believe in the following introduction.
1. Anemia is one of the clinical manifestations of chronic renal failure, as one of the distinguishing points between acute and chronic renal failure. There was no significant difference in the detection rate and severity of anemia between acute and chronic renal failure patients analyzed in our department in 100 cases. In the past, we have reported 20 cases of rapidly progressive nephritis, half of which have anemia.
2. Increased nocturia and decreased urinary specific gravity are the clinical manifestations of chronic renal failure. Half of the patients with acute renal failure in our department have a urine specific gravity lower than 1.015, and there are obvious tubulointerstitial lesions in the renal biopsy tissue. This phenomenon can explain the decrease in the urine specific gravity of acute renal failure.
3. In acute renal failure, especially acute tubular necrosis, elevated levels of urinary enzymes, brush border antigen, and urinary adenosine binding protein are also beneficial for differential diagnosis.
4. Nail creatinine measurement is a noninvasive and simple examination method, and its measured value reflects the blood creatinine level three months ago. For patients with a concealed onset or unknown medical history, and with normal kidney size, nail creatinine measurement can reveal renal function three months ago, with a specificity of 84%, which can be used as a supplement to the above two data.
5. Urinary cytology and other visible components should not be ignored in clinical diagnosis. The total number of renal tubular cells, the number of necrotic cells, the number of tubular types, and the type in urine sediment often indicate renal tubular necrosis; The more the number, the more severe the condition, and the worse the renal function; In acute interstitial nephritis and acute renal failure, eosinophils appear in the urine sediment; A large number of red blood cells in the urine, especially the tubular type of red blood cells, suggest that glomerulonephritis can cause acute renal failure.
The above describes the difference between chronic renal failure and acute renal failure. Through these differences, renal failure can be accurately diagnosed and reasonably treated. The distinction between acute and chronic renal failure is mainly based on clinical diagnosis, medical history, pathological diagnosis, and renal biopsy pathological diagnosis.