How to distinguish between dog kidney failure in stages 1, 2, 3, and 4?

The first segment is not easy to produce significant symptoms, and everything is eaten normally and drinks normally, without significant main manifestations; the second stage will cause more drinking and urine; the third stage will gradually cause nausea and vomiting, appetite decrease, iron deficiency anemia and weight loss; the fourth stage will cause appetite decrease, poor mental health, and symptoms will become more and more significant.

How to distinguish between the first, second, third and fourth phases of kidney failure in dogs? Instalments for renal failure in dogs must be integrated with the clinical medical symptoms of dogs, the renal function index values ​​in hematological examinations and the dog's condition, and it is very likely that there is a certain subjectivity. In the case of primary and secondary renal failure in dogs, it is very likely that they will only gradually develop abnormalities in the genital and reproductive system. However, the values ​​of renal hematology indicators such as creatinine and urea nitrogen may not change or increase in small amounts, but the standard values ​​of some early renal failure screening test plates such as SDMA will be shown to a certain extent. From

to the third grade, creatinine and urea nitrogen will increase significantly, and dogs will generally have significant symptoms of renal failure, such as excessive drinking, frequent urination, urgency to urinate, thinness, nausea and vomiting, etc. By grade 4 renal failure, most dogs are already very weak and are likely to experience more serious systemic symptoms, such as diabetes, iron deficiency anemia, etc. Many dogs have kidney failure in time according to routine physical examinations and can be dealt with in advance with early drug interference. Therefore, it is generally recommended that puppies over 6 years old should be persistent in regular physical examinations every year.