Urine Cystinuria Profile

Cystinuria quantitative profile (CQP) is an advanced quantitative analysis using techniques such as high-performance chromatography (HPLC) to accurately measure the concentrations of four disulfide amino acids in a single urine sample or over a 24-hour period: cysteine, ornithine, lysine, and arginine. Cystinuria is diagnosed by a marked increase in cysteine ​​excretion.