Uremia refers to the final stage of chronic renal failure, also known as end-stage kidney disease. Therefore, the first step in examining a patient with uremia is to check renal function. The patient's blood creatinine level must reach a certain level to diagnose uremia. Secondly, it is necessary to examine the urinary system through color Doppler ultrasound, and to conduct blood tests for routine blood indicators, electrolytes, parathyroid hormone, etc. The color Doppler ultrasound shows a reduction in kidney size, which provides evidence for the diagnosis of uremia. Patients with uremia often also suffer from various complications, including anemia, electrolyte disorders, hyperparathyroidism, and so on. Therefore, such patients also need to undergo examinations for routine blood parameters, electrolytes, and parathyroid hormone levels, among other indicators.