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St. John Health System
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Index:

Arsenic 24 Hour Urine

Order Name ARSENIC U
Test Number: 3809050
Revision Date 12/09/2022
Test Name Methodology LOINC Code
Arsenic 24 Hour Urine
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS) or Atomic Spectroscopy (AS)  
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 5 mL (2.5 mL) Urine, 24-hour 24 hour Urine Container Room Temperature
Instructions Notes: 2.5 mL (Note: This volume Does NOT allow for repeat testing.)
Specimen Type: Plastic urine container, no preservative
Specimen Storage: Maintain specimen at room temperature.
Specimen Collection: 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. OPTIONAL PROTOCOL: Instruct the patient to void at 8 AM and discard the specimen. Then collect all urine including the final specimen voided at the end of the 24-hour collection period (ie, 8 AM the next morning). Avoid contact with metal during collection. Screw the lid on securely.
Special Instructions: Request form MUST state volume collected as 24-hour, if applicable. Do not use preservatives. Preservatives used for routine analysis may contain mercuric oxide (ie, Stabilur), which interferes with all metal testing. If both urinalysis and metal testing
Specimen Stability: Ambient: 14 days, Refrigerated : 14 days, Frozen: 14 days
GENERAL INFORMATION
Expected TAT 3 - 6 days  
CPT Code(s) 82570, 82175
Service Provided By Labcorp Oklahoma, Inc.
Lab Section Reference Lab