24-Hour Urine Zinc Test

This test measures the amount of zinc (Zn) element excreted in urine over a complete 24-hour period. This measurement primarily reflects the amount of zinc filtered from the blood through the kidneys and lost by the body. It is an important measurement for assessing zinc deficiency associated with excessive renal loss, or for assessing normal excretion as part of evaluating the nutritional status of the mineral.