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Test Name:Arsenic w/ reflex, 24 hr urine
Test Number:38
Collect:24 hr urine collection
Container:Clean, plastic urine container with no metal cap or glued insert
Processing:Mix 24 hr collection well and transfer a 10 mL aliquot to a clean, plastic urine container with no metal cap or glued insert
Transport/Stability:Refrigerated (preferred) - 28 days
Ambient - 72 hours
Frozen - 28 days
Alternate Names:Arsenic (As)
ARU
As (Arsenic)
ARU
82175.3
Performing Lab:Mayo Clinic Laboratories (ASU24); R-MM
Days Set Up:Mo - Fri; 7 pm
Expected TAT:1 - 3 days
Ref. Ranges:0 - 17 years: not established
≥ 18 years: < 18 µg/24 hrs

Collection/
Processing Details:
Patient preparation:
Patient should not eat seafood for a 48-hour period prior to start of collection.

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.

Collection Instructions:
1. Collect urine for 24 hours.
2. Refrigerate specimen within 4 hours of completion of 24-hour collection.

24 hr volume is required
Method:Inductively Coupled Plasma Mass Spectrometry (ICP-MS)
CPT Codes:82175
Supply Connection:24 hr urine single collection container (no preservative)
Additional Information: Mayo Urine Preservatives-Collection and Transportation for 24-Hr Urine Specimens
Date Created:11/30/2001
Revised Date:11/14/2018