Arsenic, Urine

Message

ACID WASH CONTAINER IN PROCESSING

Test Code

270

Alias/See Also

LAB363

CPT Codes
82175, 82570

Includes

Creatinine

Preferred Specimen

7 mL urine collected in an acid-washed or metal-free container

Patient Preparation
Avoid seafood consumption 48 hours prior to collection

Minimum Volume

3 mL

Other Acceptable Specimens

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 patient's 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.

Instructions

Collect urine in an acid-washed or metal-free plastic container. 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.

Transport Container

Acid-washed plastic urine container

Transport Temperature

Refrigerated (cold packs)

Specimen Stability

Room temperature: 48 hours
Refrigerated: 5 days
Frozen: 14 days

Methodology
Inductively Coupled Plasma/Mass Spectrometry (ICP/MS)

FDA Status
This test was developed and its analytical performance characteristics have been determined by Quest Diagnostics. It has not been cleared or approved by FDA. This assay has been validated pursuant to the CLIA regulations and is used for clinical purposes.

Limitations

Seafood may increase urinary arsenic. This test may not rule out arsenic if spot levels are normal.

Reference Range

Arsenic, Random Urine

Non-exposed Adult	≤35 mcg/g creat
Biological Exposure Index (end of shift/work week)	≤50 mcg/g creat

Creatinine, Random Urine

≤6 Months	2-28 mg/dL
7-11 Months	2-31 mg/dL
1-2 Years	2-110 mg/dL
3-8 Years	2-130 mg/dL
9-12 Years	2-160 mg/dL
>12 Years Male	20-320 mg/dL
>12 Years Female	20-275 mg/dL

Clinical Significance

Arsenic is widely distributed in the earth's crust. Arsenic is used in some pesticides and industrial applications. Arsenic toxicity can cause skin changes, respiratory illness, nausea and vomiting, and other effects.

Performing Laboratory

Quest Diagnostics Nichols Institute

27027 Tourney Road

Valencia, CA 91355-5386

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.