The normal value of creatinine is between 30-110 μmol/L, while the normal value of urea is between 2.5-7.5 mmol/L. Creatinine and urea are both indicators of kidney function, and these two indicators are the main ones to look at when reading the kidney function checklist. Some patients’ creatinine and urea may be lower than normal, but this is generally not a concern, because the impact on the body is not significant, and patients can be advised to strengthen nutrition, and after nutrition is sufficient, basically gradually return to normal. If creatinine and urea are elevated, it will cause alarm, because it suggests that the patient has renal failure, the application of detoxification drugs such as urinary toxin Qing granules, Haikun kidney hi capsules to treat, only symptomatic treatment, the main thing to find what causes renal failure, from the cause of treatment. If it is acute renal failure, it is more likely to recover completely after treating the cause; if it is chronic renal failure, it will progress more slowly after treating the cause.