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New England · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Maine

This page explains the selenium blood test – deficiency testing, what it measures, and how to order it. A selenium blood test measures the amount of selenium in your blood. It can help assess exposure or nutritional status.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Maine

Here is what you need before ordering and completing the Selenium Blood Test – Deficiency Testing in ME. Review each item and confirm the details with the collection lab.

Physician's order
Included. A physician's order is required for lab testing and is provided for you by our partner's physicians — no referral from your own doctor is needed.
Fasting
Fasting is required for this test — follow the collection lab's instructions.
Preparation
Your lab will provide specific instructions, which may include fasting or avoiding certain supplements. Always follow the collection lab's guidance.
Sample & visit
A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
Identification
Bring the lab requisition form from your account. The collection lab may also ask for a government-issued photo ID.
Turnaround
1-3 business days
Availability
Our partner lab does not serve ND, RI, NY, NJ, MD or HI. Confirm availability for your location with the collection lab.

Before you go

  • Order your test before visiting a lab, then use the requisition form in your account.
  • Print the requisition form, or fax it to the lab directly from your account.
  • No scheduling is needed — visit the collection lab during its normal business hours.
  • A blood and/or urine sample is collected; the visit usually takes about 10 minutes.
  • Bring a government-issued photo ID in case the lab requests it.
  • Results are posted to your secure account within 1–3 business days.

Requirements are summarized from our partner lab's published policies. Preparation and availability can change — confirm current instructions with the collection lab before your visit.

What this test is

This test quantifies selenium, a trace mineral that acts as an antioxidant and supports thyroid and immune function. It is used to monitor industrial exposure or to evaluate a possible deficiency.

What it measures

  • Selenium — Reflects recent selenium intake and body status.
  • Selenium level — Used to assess deficiency or excess exposure.
  • Whole blood selenium — Measures selenium in whole blood, which may better reflect long-term status.

What the test involves

A healthcare professional collects a small sample of blood, usually from a vein in your arm. The sample is then sent to a laboratory for analysis.

Why it is often ordered

A clinician may order this test if you have symptoms of deficiency, such as muscle weakness or hair loss, or if you work with selenium in an industrial setting. It can also be part of a nutritional assessment.

Preparation

Your lab will provide specific instructions, which may include fasting or avoiding certain supplements. Always follow the collection lab's guidance.

How results are reported

Results are reported as a concentration of selenium in your blood, often in micrograms per deciliter or micromoles per liter. Reference ranges vary by laboratory, so your result should be interpreted in the context of the lab's own range.

Before you go

  • Whether fasting is required before the test
  • If you should avoid certain supplements or foods
  • How and when you will receive your results

Cities

Selenium Blood Test – Deficiency Testing in Maine communities

Choose your city for local context and to order this test.

Portland220,807Selenium Blood Test – Deficiency TestingLewiston36,615Selenium Blood Test – Deficiency TestingBangor31,920Selenium Blood Test – Deficiency TestingSouth Portland26,428Selenium Blood Test – Deficiency TestingAuburn23,790Selenium Blood Test – Deficiency TestingBiddeford22,331Selenium Blood Test – Deficiency TestingSanford21,812Selenium Blood Test – Deficiency TestingSaco20,203Selenium Blood Test – Deficiency TestingWestbrook20,074Selenium Blood Test – Deficiency TestingAugusta18,895Selenium Blood Test – Deficiency TestingWaterville15,872Selenium Blood Test – Deficiency TestingBrewer9,606Selenium Blood Test – Deficiency TestingPresque Isle8,859Selenium Blood Test – Deficiency TestingBath8,718Selenium Blood Test – Deficiency TestingEllsworth8,340Selenium Blood Test – Deficiency TestingCaribou7,448Selenium Blood Test – Deficiency TestingOld Town7,415Selenium Blood Test – Deficiency TestingRockland6,977Selenium Blood Test – Deficiency TestingBelfast6,890Selenium Blood Test – Deficiency TestingGardiner5,944Selenium Blood Test – Deficiency TestingNorth Windham5,395Selenium Blood Test – Deficiency TestingLisbon Falls4,213Selenium Blood Test – Deficiency TestingYork Harbor3,819Selenium Blood Test – Deficiency TestingSouth Berwick3,596Selenium Blood Test – Deficiency TestingLisbon3,456Selenium Blood Test – Deficiency TestingSouth Eliot3,342Selenium Blood Test – Deficiency TestingCalais3,010Selenium Blood Test – Deficiency TestingLake Arrowhead3,007Selenium Blood Test – Deficiency TestingCumberland Center2,956Selenium Blood Test – Deficiency TestingHallowell2,542Selenium Blood Test – Deficiency TestingCape Neddick2,485Selenium Blood Test – Deficiency TestingSouth Paris2,169Selenium Blood Test – Deficiency TestingDunstan1,852Selenium Blood Test – Deficiency TestingFalmouth Foreside1,811Selenium Blood Test – Deficiency TestingVeazie1,771Selenium Blood Test – Deficiency TestingSteep Falls1,677Selenium Blood Test – Deficiency TestingEastport1,226Selenium Blood Test – Deficiency TestingWest Kennebunk1,119Selenium Blood Test – Deficiency TestingCornish1,117Selenium Blood Test – Deficiency TestingKittery Point1,017Selenium Blood Test – Deficiency TestingChisholm1,007Selenium Blood Test – Deficiency Testing