Lab test
Arsenic Level Blood Test
An arsenic blood test measures the amount of arsenic in the bloodstream.
- Typical price
- From $156
- Results
- 1-3 business days
- Preparation
- See preparation notes below
- Sample
- Blood draw or sample collection at a local center
About this test
An arsenic blood test measures the amount of arsenic in the bloodstream. Arsenic is a naturally occurring element found in some groundwater, soils, and industrial settings, and it can be harmful with significant exposure. Because arsenic clears from blood relatively quickly, a blood test is most useful for detecting recent or ongoing exposure rather than exposure that occurred long ago. A healthcare provider may order it after a known contact with contaminated water or dust, during workplace monitoring, or when symptoms suggest heavy-metal exposure. Blood arsenic is a screening measurement and is interpreted with exposure history.
What this test measures
- Arsenic (blood) The concentration of arsenic in a blood sample, used to assess recent exposure to the element.
Who this test may be right for
- People with occupational exposure to arsenic, such as in smelting or pesticide handling
- Individuals who drink from a private well with possible arsenic contamination
- Anyone with symptoms such as abdominal discomfort, skin changes, or numbness after exposure
- People involved in a known arsenic exposure incident
- Those whose healthcare provider wants to evaluate a suspected recent exposure
Before your visit
- No fasting is required for this test
- Avoid a seafood meal for about two to three days before collection, because some seafood contains arsenic compounds that can raise the reading
- Tell the lab about supplements, medications, and occupational exposures
- A trace-element collection tube is typically used; follow the lab's instructions
Understanding your results
An elevated blood arsenic level may indicate recent exposure to arsenic. A result within the reference range generally suggests that recent exposure is low, but because arsenic leaves the blood quickly, a normal blood level does not rule out exposure that happened days or weeks earlier. Urine testing is often used to assess longer-term exposure. Blood arsenic results are reviewed with symptoms and exposure history. This is a screening tool, so discuss your result with a healthcare provider before drawing conclusions.
Order this test online
- Buy online in a few minutes - no doctor's visit needed for most tests.
- Sample collection at a patient service center near you.
- Results are typically ready within 1-3 business days.
- Secure, lab-reviewed results delivered to your account.
Affiliate link: we may earn a commission from orders placed through it, at no extra cost to you.
Related tests
Growth Hormone Level Test - GH Blood Test
This blood test measures levels of Growth Hormon (GH, human growth hormone).
View testHeavy Metal Lab Test - Arsenic, Lead & Mercury
This blood test measure levels of three types of heavy metals in the blood: Lead, Arsenic, and...
View testIron Level Test - Blood Test, Anemia Test
Our Iron Test aids in the evaluation of a number of conditions involving red blood cell production...
View testProgesterone Level Lab Test (Blood)
This blood test measures levels of the hormone progesterone, which plays a key role in determining...
View testFind this test in your state
Questions people ask
What does an arsenic blood test detect?
It measures the concentration of arsenic in the bloodstream, which is most useful for identifying recent exposure to the element.
Why should I avoid seafood before an arsenic test?
Certain seafood contains organic arsenic compounds that can temporarily raise measured arsenic levels, so avoiding seafood for about two to three days before collection is often recommended.
Is fasting required for an arsenic blood test?
No. The arsenic blood test does not require fasting. The main preparation is to avoid a recent seafood meal and to tell the lab about supplements or occupational exposure.
Does a normal arsenic level rule out exposure?
No. Because arsenic clears from blood quickly, a normal result may miss exposure that occurred earlier. A healthcare provider may recommend a urine arsenic test for a longer window.
What does the Arsenic Level Blood Test measure?
This blood test measures levels of arsenic in the blood to determine exposure.
Do I need to fast before this test?
Follow the lab's instructions.
How long do results take?
Most Arsenic Level Blood Test results are released in 1-3 business days. Specialty testing can take longer.
Is this test right for me?
This page is educational and not medical advice. Talk to a licensed healthcare provider about which tests fit your situation.
LabBookings is an independent directory. We compare test details and pricing information, but we are not a laboratory and we do not perform testing or provide medical advice. Always talk to a licensed healthcare provider about your results and treatment.
Laboratory services are provided by independent, CLIA-certified testing partners. Availability, pricing, and turnaround times can vary by location and are confirmed at checkout.