Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Preferred screening test for detection of arsenic exposure in 24-hour urine specimens.
<18 mcg/24 hour
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
2 - 4 days
- As, Urine
- ARSENIC, URINE
- ARSENIC, URINE 24 HOUR
Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Patient should not eat seafood for a 48 hour period prior to start of collection. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.
If arsenic concentration is 35 mcg/L or greater, then fractionation (MASFR) will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.