Examination methods of renal calculi

summary

What examination should kidney stone do commonly? Patients with painful symptoms of kidney stones are generally easier to find, but if there are no symptoms or symptoms are not obvious, it is not suitable to find, some patients even in the whole renal pelvis are occupied by stones, are not found, only in the physical examination was accidentally found, so kidney stones generally through the examination can be diagnosed, so kidney stones usually need to do what examination ？

Examination methods of renal calculi

Method 1: laboratory examination: urine routine examination showed red blood cells, white blood cells or crystalline urine pH. In patients with oxalate and urate stones, it is often acidic; phosphate stones are often alkaline; when combined with infection, there are more purulent cells in the urine; when the infection is severe, the total number of white blood cells and neutrophils can be seen by blood routine examination.

Method 2: X-ray examination: X-ray examination is an important method for the diagnosis of renal and ureteral calculi. The location and degree of obstruction of the stone can be determined. About 95% of urinary calculi can be developed on X-ray plain film. In addition, retrograde Pyeloureterography was used to exclude other upper urinary tract lesions and determine the treatment plan. And the comparison of the size and number of stones after treatment is of great value.

Method 3: other examinations: B-ultrasound can detect dense light spots or light masses at the location of stones. When combined with hydronephrosis, liquid level isotope can be detected. Nephrogram examination shows that the affected side of urinary tract is obstructive. CT scan is not as intuitive as X-ray and urography, and it is expensive, so routine examination is generally not performed.

matters needing attention

We can know the hydronephrosis and renal function, and can show the exact location of stones. We can also find a small number of negative stones that can not be found by plain film. The edge is smooth and filling. The density of defect positive stones is similar to that of contrast medium, which is easy to be covered.