Brushite Crystal; Calcium Oxalate Crystal; Hydroxyapatite Crystal; Kidney Stone Disease; Kidney Stone Profile; Sodium Urate Crystal; Stone Risk Profile; Uric Acid Crystals; SAT24
Urine, Timed Collection
Mayo Medical Lab
Other Reference Test
25-35 mL 24-Hour Urine
24-Hour Urine Container
Collect urine for 24 Hours. Refrigerate specimen during and after collection. Specimen pH should be between 4.5-8.0 and will stay in this range if kept refrigerated. Specimens with pH >8.0 indicate bacterial contamination, and testing will be cancelled. Do not attempt to adjust pH as it will adversely affect results. 24 Hour volume is required. Patient's height in centimeters and weight in kilograms are required if patient is <18 years old.
Room Temp: Unacceptable; Refrigerated: 14 Days (Preferred); Frozen: Unacceptable
35 mL 24-Hour Urine
25 mL 24-Hour Urine
Indicate 24-hour volume in comments and on specimen. Patient's height in centimeters and weight in kilograms are required if patient is <18 years old. Order test in Mayolink and send with Mayo courier Monday-Friday.
Calcium, Chloride, Citrate excretion, Creatinine, Magnesium, Osmolality, Oxalate, pH, Phosphorus, Potassium, Sodium, Sulfate, Uric acid, Ammonium and Urea Nitrogen.
82340, 82436, 82507, 82570, 83735, 83935, 83945, 83986, 84105, 84133, 84300, 84392, 84560, 82140, 84540