Cadmium, Urine

CPT: 82300; 82570
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Test Details


  • Cd, Urine

Test Includes

Cadmium, urine; creatinine, urine; cadmium:creatinine ratio; cadmium, urine (24-hour)


Monitor exposure to cadmium


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

Reference Interval

Environmental exposure: <2.0 μg/g creatinine, <3.0 μg/24 hours

Occupational exposure: OSHA Cadmium Standard: 3.0 μg/g creatinine, BEI®: 5.0 μg/g creatinine1

Specimen Requirements


Urine (random or 24-hour)


5 mL

Minimum Volume

2.5 mL


Plastic urine container, no preservative


Sampling time is not critical for industrial exposure monitoring. Metals with timing “not critical” have very long elimination half-lives and accumulate in the body over years, some for a lifetime. After a couple of weeks of exposure, specimens can be collected at any time.

Storage Instructions

Maintain specimen at room temperature.

Stability Requirements



Room temperature

14 days


14 days


14 days

Freeze/thaw cycles

Stable x3

Clinical Information

Special Instructions

Do not use preservative. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabilur), which interferes with all metal testing. If both urinalysis and metal testing are ordered, please submit a separate urine specimen (containing no additive) for the metal testing.


1. BEI® (Biological Exposure Indices) based on 2010 Recommendations of the American Conference of Governmental Industrial Hygienists (ACGIH).


Order Code Order Code Name Order Loinc Result Code Result Code Name UofM Result LOINC
072249 Cadmium, Urine 072713 Cadmium, Urine ug/L 21130-0
072249 Cadmium, Urine 072714 Cadmium/Creat. Ratio ug/g creat 13828-9
072249 Cadmium, Urine 072715 Cadmium,Urine(24 Hr) ug/24 hr 5612-7
072249 Cadmium, Urine 723280 Creatinine(Crt),U g/L 2161-8

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