Urine sediment crystallography

The urinary sediment crystallization test is one of the contents of the urine sediment inspection. There is a relationship between urinary crystallization and urine pH. There are many kinds of urinary crystals, such as calcium oxalate crystal, amorphous urate crystal, uric acid crystal, ammonium phosphate crystal, sulfonamide crystal and the like. Crystallization in urine can be divided into two types: metabolic and pathological. Metabolic crystallization is mostly from diet. Generally, it has no great significance. A large number of occurrences may be related to stones. Pathological crystallization is associated with disease. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: fasting Tips: Do not exercise vigorously, heavy physical labor, stop taking diuretics, amphotericin B and other drugs. Microscopy should be performed promptly after urine collection, otherwise it will affect the accuracy of the test. Normal value There is no crystal in the urine. Clinical significance Abnormal result (1) If there are uncommon crystals, such as the appearance of leucine and tyrosine, it indicates that the tissue in the body is rapidly decomposed and destroyed, which can be seen in acute liver atrophy, chemical poisoning and cirrhosis, lung cancer and the like. If there is bilirubin crystal, it can be seen in jaundice, acute liver atrophy, cirrhosis, liver cancer and so on. If there is cholesterol crystal, it can be seen in nephritis, renal degeneration and urinary system tumors. (2) The patient's urine discharges calcium oxalate crystals, accompanied by urinary tract irritation symptoms, such as dysuria, frequent urination, urgency or renal colic, hematuria, should consider the possibility of kidney stones; patients with long-term phosphate in the urine Crystallization, attention should be paid to the possibility of phosphate stones; eating more foods containing sorghum can increase uric acid in the urine, but acute gout, chronic interstitial nephritis, leukemia can also discharge a large amount of urate; Fresh urine contains a large amount of ammonium urate crystals, and should be considered for urinary tract bacterial infection. People in need of testing have people with crystals in their urine. Precautions Before the test: prohibit strenuous exercise, heavy physical labor, stop taking diuretics, amphotericin B and other drugs. At the time of examination: microscopy should be performed quickly after urine collection, otherwise the placement time is too long, if it is low urine, hemolysis can occur; if it is high urine, it may be dehydrated and the shape of red blood cells changes; if it is alkaline urine It can cause blood cell components and tube types to collapse, affecting the accuracy of the test. Inspection process Subjects' urine was collected for microscopic examination. Not suitable for the crowd Generally no taboos. Adverse reactions and risks No.

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