What does it mean when cystatin C and creatinine levels are elevated?

Elevated levels of cystatin C and creatinine indicate impaired kidney function and may suggest the presence of certain kidney diseases. A definitive diagnosis should be made in combination with other tests, followed by targeted treatment. The specific analysis is as follows:

Cystatin C is a small molecular weight basic protein and serves as an endogenous marker for glomerular filtration. Creatinine is a metabolic waste product eliminated from the body through the kidneys. If both cystatin C and creatinine levels are found to be elevated during testing, this suggests abnormal kidney function and possibly early-stage kidney damage, such as that caused by severe blood loss, urinary tract obstruction, or diabetic nephropathy. However, in addition to evaluating cystatin C and creatinine levels, other test results—such as urine protein or blood urea nitrogen—should also be considered. If these indicators are all abnormal, it is important to consult a physician to determine the exact underlying cause and receive appropriate, targeted treatment.

In summary, if the above issues occur, prompt medical attention is recommended. During recovery, it's essential to maintain regular作息 (daily routines), follow a light diet, reduce salt and fat intake, engage in appropriate physical activity, enhance immune function, and undergo regular follow-up examinations.