Random Urine, Iodine, Creatinine Ratio

Synonyms

• IODINE CREAT RATIO RANDOM URINE
• IODINERU
• LAB11688

Cerner Name

Iodine, Creat Ratio Random Urine

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 Sources

Bladder Kidney, Left Kidney, Right Ureter, Left Ureter, Right Urine, Catheter Urine, Clean Catch Urine, Foley Urine, Voided

Specimen Types

Urine

Specimen Volume

3 mL Random Urine (2 mL min)

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 Laboratories

Mayo Medical Laboratories

CPT

83789
82570
LOINC Code: 55928-6

PDM

1759540

Results

Result Interpretation

Forms