CALCIUM EXCRETION 2 HOUR FASTING URINE
10 mL (5 mL min.) aliquot of 2 hour urine collection in a sterile screw capped container. Follow detailed instructions as below:1) No food or drink after 6 pm a day prior to the test. 2) On the day of the test do not void urine after 8 am. 3) At 10 am void urine and discard. 4) Drink a glass of water at 10 am and 11 am. Drink only deionized / distilled water. 5) Collect urine voided at 12 noon in the container with 6N HCl as the preservative. Ship refrigerated or frozen. Record 2 hour volume on the urine vial and test request form.
Sample Daily by 1pm
Report 2nd day Evening