Functional examination of the kidneys
| Sample name | Method | Indicators |
| Breeding test | According to Folhard (load 1.5 liters of water) | More than 50% of the liquid discharged is released after 2 hours, the rest - for 3-4 hours. Relative density is reduced to 1001-1003. The amount of urine in portions of 50-500 ml |
| Concentration test | According to Folhard | The amount of urine in portions 50-60 ml, the relative density after 4-8 hours reaches 1028-1035 |
| The Zimnitsky sample | The daily amount of urine is 65-75% of the fluid. Daily diuresis is 2 / 3-3 / 4 diurnal. Relative density 1004-1024 | |
| Rheberg's test | Determination of creatinine in blood and urine | Glomerular filtration 75- 125 mg / min. Reabsorption 98.2 98.8% |
| Indigo carmine test | Introduction to a vein of 20 ml of 0.4% solution of indigo carmine | Isolation of colored urine after 5-10 min |
| The magnitude of tubular secretion | Introduction of phenol red | Excretion in the urine after 15 min 25% or more of the injected paint |
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