Test BackgroundKidney stones are solid accretions of dissolved minerals in urine found inside the kidneys or ureters. These are subsequently expelled in the urine stream, leading to ureteric obstruction and distension. Stones form around a central nidus from which a crystalline structure expands and are typically derived of calcium salts (of which calcium oxalate predominates). Other examples of calculi include the (urea-splitting) bacterially-derived struvite (Mg, NH4 and PO4), uric acid and cystine.
Sample Required Renal stone
Sample Volume Ideally 10 mg
Turnaround Time Up to 6 weeks
NotesNot currently performed in house; this is a referred test.
Full clinical details should be supplied.