|Test Code||CYS24 / 700195 - L|
|Test||CYSTINE, QUANTITATIVE, 24-HOUR URINE|
|Description||Useful in the detection of cystinuria and other diseases related to the sulfur - containing amino acids, and in the work up of nephrolithiasis.|
|Specimen||25 mL (minimum volume: 2.5 mL) aliquot of a 24-hour urine collection. Add 30 mL of 6N HCl at the start of the collection, and refrigerate during collection. For multiple collections, see "Urine Preservatives". Mix well and measure volume. Indicate volume on requisition. pH must be 1 - 3.
Send FROZEN. Follow "Urine Collection" procedure.
|Reference Values||10 - 100 mg/24 hours|
|Analytic Time||2 Days|
|Day(s) Test Set Up||Monday through Friday|