Heavy Metals Panel (Lead, Mercury, Arsenic)
Comprehensive blood test measuring three toxic metals - lead, mercury, and arsenic - to assess potential exposure and help protect against heavy metal toxicity.
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
What this test measures
This panel measures blood levels of three toxic metals that are among the most common causes of heavy metal poisoning: lead, mercury, and arsenic. None of these metals serves a beneficial biological function in the human body, and all can cause harm when they accumulate beyond the body's ability to clear them. They enter the body through inhalation, ingestion of contaminated food or water, and in some cases skin absorption.
Lead exposure most commonly occurs through occupational settings, aging paint and plumbing, and contaminated soil. Mercury exposure can result from dietary sources (particularly large predatory fish), dental amalgam, and industrial processes. Arsenic exposure is often environmental, linked to contaminated groundwater, certain foods (particularly rice), and industrial or agricultural sources. By measuring all three metals in a single panel, the test provides a broad toxicological screen that can identify recent exposure and help healthcare providers evaluate whether symptoms like fatigue, headaches, gastrointestinal distress, or neurological changes may be related to heavy metal burden.
What's included
Who should consider this test
You might consider this test if you are experiencing any of the following:
- Individuals working in industries with potential metal exposure, such as construction, manufacturing, mining, or automotive repair
- Those living in older homes (built before 1978) where lead-based paint may be present
- People who consume large amounts of seafood or fish, particularly larger species that may contain mercury
- Individuals experiencing unexplained neurological symptoms, fatigue, or gastrointestinal issues that could be related to metal toxicity
- Workers in occupations requiring workplace safety monitoring for heavy metal exposure
- People living near industrial sites, mining operations, or areas with known environmental contamination
What to expect
Preparation
Avoid eating seafood for 48 hours before the test, as some fish and shellfish contain high levels of mercury. Individuals should also avoid shellfish and consider discontinuing nutritional supplements, vitamins, and minerals for 48-72 hours before testing, as these may introduce interfering substances. No fasting is required for this test.
Sample Type
Blood sample collected from a vein in the arm using specialized trace element-free collection tubes
Collection
A healthcare professional will take a blood sample from a vein in the arm using a small needle, collecting a small amount of blood into a test tube or vial. The process typically takes less than five minutes. Specialized "trace element free" vials are used, with royal blue-capped tubes being preferred to prevent contamination.
Turnaround
Results are typically available within a few days. The laboratory uses advanced analytical methods to ensure accurate measurement of these metals at very low concentrations.
Understanding your results
Results for each metal are reported in micrograms per deciliter (μg/dL) or nanograms per milliliter (ng/mL) and compared against established reference ranges. It is important to understand that blood levels primarily reflect recent exposure; these metals can accumulate in bones, organs, and tissues over time in ways that a blood test may not fully capture. Higher-than-expected levels indicate exposure but do not necessarily confirm toxicity, which depends on the duration and magnitude of exposure as well as individual factors. Healthcare providers interpret results alongside symptoms, exposure history, occupation, dietary habits, and geographic risk factors to determine whether further evaluation or intervention is needed.
| Population | Reference Range | Notes |
|---|---|---|
| Adults (all ages) | Lead: <5.0 µg/dL | For pediatric patients, there may be an association with blood lead values of 5.0 to 9.9 µg/dL and adverse health effects |
| Adults (all ages) | Mercury: <10 µg/L | Mercury levels can vary based on recent seafood consumption and dental amalgam fillings |
| Adults (all ages) | Arsenic: <12 ng/mL | Abnormal blood arsenic concentrations above 12 ng/mL indicate significant exposure. Unless blood is drawn within 2 days of exposure, arsenic is not likely to be detected in blood |
Reference ranges shown are general guidelines. Your lab report will include the specific reference range used by the laboratory that processed your sample, which is the authoritative range for interpreting your results.
What does a “Low” result mean?
Low or undetectable levels of these heavy metals in blood are generally considered normal and desirable, as lead, mercury, and arsenic serve no biological role in the human body. These results suggest minimal recent exposure to these toxic metals. However, it's important to remember that blood tests primarily reflect recent exposure rather than total body burden of these metals. For individuals with suspected chronic exposure, additional testing using urine or hair analysis might be recommended by a healthcare provider to assess longer-term exposure patterns.
What does a “High” result mean?
Elevated levels of heavy metals in blood may indicate recent exposure or potential toxicity. Elevated lead levels can lead to serious health problems affecting the neurological system, kidneys, and other organs. Heavy metal poisoning can lead to organ damage, changes in behavior, or difficulties with thinking and memory. High mercury levels might suggest exposure from seafood consumption, dental amalgams, or environmental sources. Elevated arsenic typically indicates recent exposure, as arsenic is rapidly distributed into tissue storage sites with a blood half-life of less than 6 hours. It's important to work with a healthcare provider to identify potential exposure sources and determine if additional testing or treatment is needed.
Privacy & confidentiality
All test orders are authorized and results reviewed by an independent, board-certified physician who is not the patient's personal doctor. Heavy metals testing with LevelPanel provides complete confidentiality for individuals concerned about potential toxic metal exposure. Test results are <u>not reported to your personal doctor</u> unless you choose to share them, giving you control over your health information. Results are <u>not added to your medical records</u> or insurance files, ensuring your privacy is protected. The test <u>will not appear on insurance statements</u> or explanation of benefits (EOB) forms, maintaining complete discretion about your health screening activities. Many people prefer private testing for heavy metals due to concerns about workplace exposure, environmental contamination, or potential impacts on employment. Whether testing for occupational safety monitoring, personal health awareness, or investigation of unexplained symptoms, individuals can feel confident that their results remain completely private. No doctor visit is required to order this test, and results are delivered securely through an encrypted patient portal, ensuring only the individual being tested has access to their results.
Frequently asked questions
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Last reviewed: April 2026
CPT Code: 83655, 83825, 82175
This test may not be available in: NY, NJ, RI
This page is for informational purposes only and does not constitute medical advice. Always consult with a healthcare provider regarding any health concerns. LevelPanel does not diagnose, treat, or prescribe.
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LevelPanel has no business or affiliate relationship with Quest or LabCorp. These links are provided as a public service.
Lab testing services linked from this site are not available to residents of Alaska, Arizona, or Hawaii, unless otherwise noted on the lab's own website.
This publication is not intended to solicit the purchase of laboratory testing from any individual consumer.
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