Heavy metal testing involves a quick urine excretion test to determine which metals and at what concentrations are present in your body. The Provoked Urinary Toxic Metal Assay includes two urine tests. The first, to provide baseline data for comparison during heavy metal detox therapy. The second, following the mobilization of heavy metals in your body. The results will reveal whether you have elevated amounts of stored heavy metals and at which concentration (reflecting chronic buildup).