SAMPLE REQUIRED : 10 mL aliquot of 24 hour urine collected in an acid -washed (Metal free)container kt available from LPL. Mix thoroughly. Transfer 10 ml aliquot to vial provided in kt. Measure 24  hour total volume and record on vial and test request form. Ship refrigerated or frozen. Use powderless gloves during specimen collection.

TEST PREPARATION: NA

REPORT TAT: 7 DAYS