Gender for Male, Female:

Pre Requisites
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.

Sample Type
24 hr Urine