ARSENIC 24 HOUR, URINE

Specimen Required
Collect 24 hour urine in acid washed container. Mix well and send 7.0 mL urine (3.0 mL minimum) frozen in acid washed screw-capped plastic container. Avoid worksite collection. Avoid seafood consumption for 48 hours prior to collection. Record total volume on specimen container and test requisition. Call lab for collection container. A complete heavy metal form must accompany sample. Tests performed on a specimen submitted in a non-trace element tube or non acid washed/non metal free container may not accurately reflect the patients level. If a non-trace element tube/container is received, it will be accepted for testing. However, elevated results shall be reported with a message that a re-submission with a trace element tube/container is recommended.

Alternate Specimen
Random Urine

Rejection Criteria
Sample acidified with HCl

Methodology
Inductively Coupled Plasma/Mass Spectrometry

Stability
Room Temperature: 48 hours; Refrigerated: 5 days; Frozen: 14 days

Reference Range
<81 mcg/L

Performed
Tuesday, Thursday, Saturday

Turnaround Time4-6 days
Test CodeUARS
CPT-4 Code (s)
82175
LOINC Codes
Total Volume   3167-4  
Arsenic   5586-3  
Arsenic 24 hour   5587-1  

Warde
Medical
Laboratory