Iodine, Urine 24 Hr
Centralized Core Laboratory:Chemistry
10 mL (minimum 3.0 mL) urine from a well-mixed 24 hour collection
Sent to reference lab
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
10.0 mL (minimum 0.3 mL) urine aliquot from a well-mixed 24 hour urine collection in a plain preservative free container. Instruct patient on 24 hour urine collection. To begin the urine collection, have the patient void. DISCARD THIS URINE SPECIMEN. This is best done with the first morning specimen. Note the time and record on the requisition. From then on collect all the urine that is voided and place in container. If more than one container is needed, please mark the first as #1 of 2 and retain on the floor until the collection is complete. The final void should be made 24 hours after the first void described earlier. The specimen should be included with the collection. Refrigerate 24 hour urines during collection.
0-15 years: not established
> or = 16 years: 93-1,125 mcg/specimen