KIDNEY STONE FORMATION, DIAGNOSTIC PANEL
pH, Creatinine, Calcium, Magnesium, Citrate, Oxalate, Osmolality, Electrolytes, urine, Uric Acid, Phosphorus
Day 1: 50 mL (30 mL min.) aliquot of 24- hour urine. Do not use preservatives. Mention total volume on Test Request Form & label container as Non-acidified urine. Day 2: 50 mL (30 mL min.) aliquot of 24 hour urine. Collect urine with 25 mL 50% concentrated HCl to maintain pH below 3. Mention total volume on Test Request Form & label container as Acidified urine. Ship both specimens frozen. DO NOT THAW. Record patient weight on Test Request Form.
Spectrophotometry, Enzymatic, Indirect ISE
Sample by Tue, Fri 1 pm
Report 2nd day Evening