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Alias Names: Iodide
Methodology: Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)
Edit Date: 6/8/2009
Performed: Varies, twice each week
Released: 24 hours after setup at PeaceHealth Laboratories’ reference lab.
CPT Code: 83789-90
Specimen Collection Details
Collection: One 6 mL royal blue top tube (EDTA). Also acceptable: One 6 mL royal blue top tube Trace Element – no additive.
Handling: Centrifuge and separate plasma or serum into a metal-free screw cap vial. Do not insert pipette into the plasma or serum, and do not ream the specimen with a wooden stick to remove any clots.
Stability: 24 hours ambient or 10 days refrigerated. Unstable frozen.
Standard Volume: 1 mL plasma or serum.
Minimum Volume: 0.5 mL plasma or serum.
Transport: Refrigerated.
Rejection Criteria: Specimen frozen; other than EDTA serum or plasma in a royal blue top tube.

Reference Range:
40-92 µg/L
Values between 80 µg/L and 250 µg/L have been reported to indicate hyperthyroidism.
Values >250 µg/L may indicate iodine overload.
Administration of iodine-based contrast media and drugs, such as amiodarone, will yield elevated results.
Disinfectants such as betadine which contain iodine should not be used during venipuncture.
If gadolinium-containing contrast media has been administered, a specimen should not be collected for 48 hours.

PeaceHealth Laboratories