5. Dou Dou

5. Dou Dou

Q: A 38-year-old man recently found during a health check that his creatinine level is at the borderline. Even after several days of vegetarian diet and retesting, the level remains borderline. His urea nitrogen and urine test results are normal, and he feels no particular discomfort. His blood lipids are slightly elevated. Is there a problem? Should further examinations be conducted? What precautions should he take in daily life?

A: Overall, there is no major issue. Creatinine and urea nitrogen are collectively referred to as non-protein nitrogen, which are byproducts of protein metabolism in the human body. Creatinine comes from muscle activity, while urea nitrogen comes from food consumption. An elevated creatinine level indicates high physical activity; athletes often experience creatinine levels at the borderline or even higher during competitions. As for the slightly elevated blood lipids, it depends on which specific lipid is elevated. If the increase is minor compared to the normal range, dietary and exercise adjustments may suffice. However, if the elevation is significant, medical consultation and medication are necessary.

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January 2, 2014