Dear sir, my son 18 years old serum
creatinine is 0.56 mg/dl (bio ref. 0.7-1.3), blood urea 14 mg/dl (bio ref 19.3-49.38) and blood urea nitrogen 6.5 mg/dl (bio ref 8-20).
Rest all KFT report parameters serum
uric acid,
calcium, sodium and chloride with in normal range.
Please advise sir why creatinine, urea and BUN below normal.