Metals system

Arsenic

As

A toxic element with sources in water, food, and certain occupations.

What is it

Arsenic — in plain English.

Arsenic exposure can occur through contaminated water, certain foods (rice, seafood), and occupational sources. Chronic exposure is studied in research on cancer and cardiovascular risk.

Why it's measured

What As can reveal.

Chronic arsenic exposure has been associated with cardiovascular, dermatologic, and oncologic risks in published research.

Reference range

Where most laboratories draw the standard line.

Standard laboratory reference

< 50 μg/L

Reference ranges vary by laboratory. Your individual reference range will appear on your test report and should be interpreted by your physician in the context of your overall health profile.

What results may indicate

Higher vs. lower As — at a high level.

Elevated

Has been associated with cardiovascular, skin, and oncologic risks in research literature.

Lower

Generally considered favorable.

These associations are general. They are not a personal diagnosis or prediction. Discuss your individual results with your physician in the context of your full health profile.

When it's measured

When As is typically run.

Measured when exposure is suspected or in comprehensive heavy metal panels.

Related markers

Often measured alongside As.

Measured in

As is one of 160 biomarkers in the Apex Panel.

A complete look at your heart, hormones, metabolism, inflammation, and longevity systems — drawn at Quest or LabCorp, reviewed by a U.S.-licensed physician.

Explore the Apex Panel
160 biomarkers13 body systemsPhysician-reviewed
Back to all biomarkers

This information is for general educational purposes only and is not medical advice. Lab results alone are not intended to diagnose, treat, or cure any condition and do not replace the advice of a healthcare provider. OPTML does not offer medical advice, a diagnosis, medical treatment, or any form of medical opinion.