Nomograms for the estimation of the saturation of urine with calcium oxalate, calcium phosphate, magnesium ammonium phosphate, uric acid, sodium acid urate, ammonium acid urate and cystine

Abstract Simple procedures are described for estimating the saturation of urine with each of the major constituents of urinary calculi by means of nomograms which require the minimum number of necessary chemical estimations on the urine. The values estimated in this way compare well more accurately determined values which require several more analyses to be performed on each urine and which also require access to a computer for their calculation.