Iodine, 24 hour urine

9 days

Inductively-coupled plasma/mass spectrometry (ICP/MS)

Accredited Laboratory Partner

Contact Technical Support

Assesses daily iodine excretion. Used in evaluating iodine status and thyroid function.

24 hour urine

5 mL

Plastic urine container, no preservative

Instruct the patient to void at 8 AM and discard the specimen

Collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Screw the lid on securely. Transport the specimen promptly to the laboratory. Container must be labeled with the patient's full name, room number, the date and time collection started, and the date and time collection finished. Do not use preservative.