It is usually not possible to determine the stage of chronic kidney disease based on creatinine 200μmol/L alone. The stage of chronic kidney disease is usually judged based on glomerular filtration rate.
Creatinine is the metabolic end product of creatine in muscle tissue. Creatinine does not bind with protein in the blood and can pass freely through the glomerulus, which is the most commonly used indicator to indirectly reflect the glomerular filtration function. When glomerular filtration is impaired, the body’s serum creatinine may be elevated, suggesting the presence of renal insufficiency.
Normal serum creatinine ranges from 53 to 106 μmol/L in men and from 44 to 97 μmol/L in women. A creatinine of 200 μmol/L suggests impaired renal function. Clinically, laboratory data such as urea and creatinine are commonly used to estimate glomerular filtration rate by various formulas in combination with patient’s gender, age, ethnicity and other information, so as to stage chronic kidney disease.
Therefore, based on creatinine 200μmol/L alone, it is usually not possible to determine the stage of CKD, and further kidney function tests are needed. If you find elevated creatinine level, it is recommended to go to regular hospitals in time, improve the examination to identify the cause of the disease, and then give targeted treatment or therapy under the guidance of the doctor.