Estimation of some biochemical constituents in renal stones

ABSTRACT

Some biochemical studies were performed on 40 adult patients with renal stones [20 Ca oxalate stones +/- 20 uric acid stones]. Chemical analysis of renal stones, estimation of serum level of Ca, uric acid and phosphorus for each patient were done. There is a direct correlation between the type of the stone and the level of its mineral constituent in serum. However, in calcium oxalate stones, they showed high serum level of uric acid in 17 cases [85%] in spite of the absence of uric acid crystals in the stones. In uric acid stones, there is only 5 cases [25%] which showed high level of serum Ca in spite of absence of the Ca crystals in the stones