There is no such thing as blood uric acid 900 μmol/L for uremia. Uric acid is the product of purine metabolism, and uremia is mainly referred to serum creatinine. So no matter how much uric acid, can not confirm the diagnosis of uremia. Uremia is the common outcome of the continued progression of various chronic kidney diseases, and the diagnosis mainly refers to blood creatinine. Patients with uremia have severely impaired glomerular filtration, reabsorption and other functions, and are highly susceptible to water and sodium retention, electrolyte and acid-base balance disorders. Although uric acid may be elevated in some uremic patients, uric acid is not a diagnostic criterion for uremia. A fasting blood uric acid level greater than 420 μmol/L on both non-same-day occasions is diagnostic of hyperuricemia. Patients with abnormal blood uric acid or blood creatinine should go to the hospital in time for timely treatment under the guidance of a professional physician.