Arsenic exposure profile, urine

Alphabetical Test listing

Arsenic exposure profile, urine-994

Arsenic exposure profile, urine
As, Urine

Monitor chronic exposure to arsenic

Urine, random
5 mL
2.5 mL

Screw cap plastic container (sterile)

Urine, 24 hr

24 hr urine collection container, no additive

Do not use preservatives. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabilur), which interferes with all metal testing.

  1. Instruct the patient to void at 8 AM and discard the specimen.
  2. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning).
  3. Avoid contact with metal during collection.
  4. Screw the lid on securely. 

24 hr urine collection container, no additive

  • Request form MUST state volume collected as 24-hour, if applicable.

Ambient (preferred) - 14 days

Refrigerated - 14 days

Frozen - 14 days

  • Visibly bloody specimen
LabCorp Burlington (007045): R-NX
Mo - Fr
2 - 4 days

High Performance Liquid chromatography / Inductively coupled plasma-mass spectrometry (HPLC/ICP-MS)


Environmental exposure
Total arsenic: 0−50 μg/L, 0−50 μg/24 hours
Inorganic arsenic: < 20 μg/L

Occupational exposure
BEI®, inorganic arsenic plus methylated metabolites (sampling time is end of work week): 35 μg/L creatinine



Sampling time is the end of the work week for industrial exposure monitoring. Metals with timing "end of work week" (meaning four or five consecutive working days with exposure) are eliminated with half-lives longer than five hours. Such metals accumulate in the body during the work week; therefore, their timing is critical in relation to previous exposures.

Result 21074-0