Question
All four items in the kidney function test are normal, but the creatinine level is only 36 (normal range 70-133). Does this mean the kidney function is normal?
Answer
The creatinine level is only slightly low, which does not indicate whether the kidney function is normal. It is recommended to have another test. Creatinine enters the glomerular filtrate and is not reabsorbed, and its level is not affected by normal diet. Because the amount of creatinine excreted in the urine of a person without kidney disease is relatively constant every day. When kidney function is damaged, blood creatinine levels will rise. So, your child’s result is normal.