Urine concentration dilution test

Normal kidneys have excretion, regulation and endocrine functions. The urine concentration dilution test mainly reflects the renal tubular excretion function. Normal value of urine concentration and dilution test: urine volume 1000-2000ml. Nocturnal urine volume <750ml. Nocturnal urine volume / urine volume 1:3 ~ 1:4. Nocturnal urine density >1.018. The highest specific gravity of sputum is >1.018. The maximum difference between the highest and lowest urine is 0.008~0.009. Basic Information Specialist classification: urinary examination classification: urine / kidney function test Applicable gender: whether men and women apply fasting: not fasting Tips: Fresh morning urine should be used as much as possible. The urine that is randomly selected is preferably mid-stage urine. Menstrual women are not suitable for this examination. Normal value The amount of urine is 1000 to 2000 ml. Nocturnal urine volume <750ml. Nocturnal urine volume / urine volume 1:3 ~ 1:4. Nocturnal urine density >1.018. The highest specific gravity of sputum is >1.018. The maximum difference between the highest and lowest urine is 0.008~0.009. Clinical significance 1, the amount of nocturnal urine exceeds 750ml, suggesting that the kidney is not fully functional. 2. The ratio of nocturia to urine volume is less than 1:3; the highest specific gravity is less than 1.018; the highest and lowest specific gravity difference is less than 0.009, which is early renal insufficiency. 3, the amount of nocturnal urine exceeds the amount of urine, the highest proportion of urine is less than 1.018; the difference between the highest and lowest specific gravity of urine is reduced to 0.001 ~ 0.002, or the specific gravity of urine is fixed at 1.010, indicating severe renal insufficiency. 4, the specific gravity of the urine is fixed at 1.018 or higher, seen in acute nephritis, passive renal congestion and excessive sweating. Precautions Note during inspection: Fresh morning urine should be used as much as possible during this examination. The urine that is randomly selected is preferably mid-stage urine. Before the inspection: Pay attention to the doctor to drink water or water. Not suitable for the crowd: menstrual women. Inspection process Inspection process: As with routine urine tests, use a clean, dry container with a disposable urine cup and urine test tube provided by the hospital. Take about 10 ml of urine and send it to the designated inspection window of the hospital. The doctor will check whether the concentrated or diluted urine is normal. Not suitable for the crowd Menstrual women. Adverse reactions and risks no.

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