1 - 3 days
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Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Monitoring selenium replacement therapy.
< 35 mcg/specimen (24 hr collection)
* Reference ranges may change over time. Please refer to the original patient report when evaluating results.
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 total 24 hour urine volume and collection dates/times on request form. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.