What tests will show kidney stones
What tests will show kidney stones
Renal stone disease is one of the mostthe most common diseases of the urinary system. It is characterized by the appearance of stones in the pelvis of the kidneys. These stones consist of salts that are present in small amounts in the normal urine. The disease can be diagnosed by several methods of investigation.
Instructions
1
For the detection of stones (concrements) in the kidneys inFirst of all, give a general (clinical) analysis of urine. If it detects salt crystals, it will be an indirect sign of kidney stone disease. The determination of the type of salts can give preliminary information about the chemical composition of the stones. For example, if oxalate has been detected in the urine, there is a high probability of calcium in the kidneys of the oxalate calculus.
2
The acidity (pH) of urine is an important indicator. If it is equal to 7,0, urine is considered neutral, at pH below 7,0 - acidic, and above 7,0 - alkaline. In patients with uric acid stones, urine has a more acidic reaction, and urine alkaline in patients whose concrements have appeared due to infection. Crystals of uric acid at pH less than 6.0 are characteristic of urate nephrolithiasis and uric acid diathesis. Crystals of magnesium and calcium at urine pH above 7.0 indicate phosphate urolithiasis and phosphaturia, calcium oxalates are characteristic of calcium oxalate urolithiasis or oxaluric diathesis.
3
If bacteria were found in the urine, it couldtestify to the presence of struvite calculus or the concomitant infectious complication of nephrolithiasis. Almost always, there are leukocytes in all kinds of urinary calculi. A doctor can schedule an analysis of 24-hour urine (collected in 24 hours). This study is necessary to assess the volume of urine released per day, to determine the level of acidity and the detection of salts and crystals in it.
4
If you suspect a kidney disease, hand overBlood tests: general and biochemical. As a rule, kidney stones do not cause strong changes in the parameters of the clinical (general) blood test, however, in case of complication of the disease (pyelonephritis, renal colic), an increase in the level of leukocytes may be observed. The biochemical blood test allows you to determine the level of creatinine, urea, uric acid, etc. Normally urea should be up to 8.7 mmol / l, increasing its blood level indicates a decrease in kidney function, which is one of the symptoms of kidney failure.
5
The rate of creatinine in the blood is up to 115Μmol / l. An increase in its level is a symptom of decreased kidney function, kidney failure. Normally, urea is: for men - 214-458 μmol / l, for women - 149-404 μmol / l. An increase in this indicator may indicate an increased formation of uric acids, that is, urate nephrolithiasis. This phenomenon is observed with urolithiasis with the formation of urates, with gout.
