I am writing because I am concerned and am wondering if anyone has experienced anything similar to this. I recently went to the doctor with some unexplained abdominal pain and other digestive problems. The doctor ordered a series of blood tests to rule out any sort of food allergy or underlying cause, but when I received my test results back, I had a high creatinine level of 1.9 and an eGFR of 32. I don't have high blood pressure, nor do I have high glucose levels, I'm of healthy weight and don't posses any of the risk factors for CKD. I had a blood test done 6 months ago and my creatinine was 0.7 with an eGFR of over 100.
Basically, my question is, is there any way these tests may be incorrect in any way, or is it very likely that I have CKD? I had a very bad UTI 3 months ago, could that have caused these problems? And what would you all recommend I do next? I'm only 18 and am very concerned about this.
Those lab results are markedly different over a six month period. Whenever that occurs, I think it is reasonable to repeat them, and add anything related to it. I would ask to get a urinalysis done with microscopic exam, not just a dipstick, so someone can get a good count of any red blood cells, white cells and look for casts. If your urine is abnormal in any way, eg high protein, and the creatinine and eGFR come back similarly abnormal, I would see a kidney specialist. It is unlikely the UTI caused this, but it is important to be sure the infection is completely cleared up.