Test Overview

Test Methodology

Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

Test Usage

Preferred screening test for detection of arsenic exposure in 24-hour urine specimens.

Reference Range*

<18 mcg/24 hour

* Reference ranges may change over time. Please refer to the original patient report when evaluating results.

Test Details

Days Test Performed

Monday - Saturday

Analytic Time

2 - 4 days

Soft Order Code

MASU

MiChart Code

Arsenic, urine, 24 hour

Synonyms

Synonyms

As, Urine
ARSENIC, URINE
ARU24
ARU24-CONC
ARSENIC, URINE 24 HOUR
CONCENTRATION

+ See More

Laboratory

Sendout

Laboratory Reference

Mayo ASU24

Looking to Order a Test?

We’ve provided helpful links to make ordering easy.

Find a Requisition

All specimens should be accompanied by a requisition.

Submitting Specimens

Learn about how to properly label and where to ship specimens.

Order Kits and Supplies

MLabs provides all the supplies necessary for the collection of specimens.

Test FAQ

Visit our provider FAQ and learn about common questions to ordering tests.

Specimen Requirements

Offsite Collection Instructions

Collect 24 hour urine in a clean, plastic container with no metal cap or glued insert and no preservative. Aliquot urine into a clean, plastic container with no metal cap or glued insert and refrigerate within 4 hours of completion of collection. Record 24 hour urine volume and collection dates/times on the request form. Patient should not eat seafood for a 48 hour period prior to start of collection. Collection must take place prior to or 48 hours after administering gadolinium-containing contrast media.

Contraindication

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.

Container

24-hour Urine Jug

Normal Volume

10 ml aliquot of 24 hour urine collection

Minimum Volume

3 ml aliquot of 24 hour urine collection

Additional Information

If arsenic concentration is 35 mcg/L or greater, then fractionation (MASFR) will be performed at an additional charge. By ordering this test the clinician acknowledges that additional reflex testing will be performed and billed at a separate additional charge if indicated. Test sent to Mayo Medical Laboratories.

Billing Information

Fee Codes


CPT Code

82175

Reflex Fee Code

32111

LOINC

5587-1

Have More Billing Questions?

Explore our helpful billing resources:

Billing Resources


Billing FAQ