Iodine, Creat Ratio Random Urine IODINERU

Synonyms

Allscripts (AEHR) Order Name

Iodine, Random Urine

Sunrise Clinical Manager (SCM) Order Name

Iodine, Random Urine

EPIC Order Name

Random Urine, Iodine, Creatinine Ratio

Clinical Info

Assessment of iodine toxicity or recent exposure when a 24-hour urine cannot be collected
Monitoring iodine excretion rate as index of replacement therapy when a 24-hour urine cannot be collected

Specimen Type

Urine

Container

Urine Tube

Collection Instructions

**Due to the significant variation in the rate of secretion over the course of a day, a 24-hour collection is preferred **
Container/Tube: Random urine collection
Specimen: 3 mL Random Urine (2 mL min)
Transport Temperature: Refrigerated
Stability: 30 Days Room Temperature, Refrigerated or Frozen
Patient Preparation: High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen should not be collected for 96 hours before starting collection.

Transport Instructions

Refrigerated

Specimen Stability

30 Days Room Temperature, Refrigerated or Frozen
Patient Preparation: High concentrations of gadolinium and iodine are known to interfere with most metals tests. If either gadolinium- or iodine-containing contrast media has been administered, a specimen

Methodology

Iodine: Inductively Coupled Plasma-Mass Spectrometry (ICP-MS)
Creatinine : Enzymatic Colorimetric Assay

Days Performed

TAT: 2 - 4 Days

Performing Laboratory

Mayo Medical Laboratories

CPT

83789
82570
LOINC Code: 55928-6

PDM

1759540

Result Interpretation

0-17 years: not established
> or = 18 years: <584 mcg/g creatinine

Forms


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