Blood creatinine 1200μmol/L suggests uremia, which is a very serious condition and requires timely consultation in hospital. Blood creatinine is an indicator of kidney function, the normal value of blood creatinine is 53-106μmol/L for men and 44-97μmol/L for women, and the reference value may vary slightly in different hospitals. Blood creatinine 1200μmol/L, suggests that the glomerular filtration rate is seriously impaired, has reached the uremic stage, may appear nausea, vomiting, urinary or even no urine, heart failure, heart attack, arrhythmia, anemia, water, electrolyte and acid-base balance disorders, etc., and need to be timely renal replacement therapy, or it may be life-threatening. It is recommended that patients with blood creatinine 1200μmol/L should go to the hospital as soon as possible and receive standardized treatment under the guidance of professional physicians to avoid delaying their condition.