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New England · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Massachusetts

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 Massachusetts

Here is what you need before ordering and completing the Selenium Blood Test – Deficiency Testing in MA. 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 Massachusetts communities

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

Boston4,208,580Selenium Blood Test – Deficiency TestingSpringfield620,494Selenium Blood Test – Deficiency TestingWorcester573,573Selenium Blood Test – Deficiency TestingNew Bedford158,353Selenium Blood Test – Deficiency TestingLeominster118,190Selenium Blood Test – Deficiency TestingCambridge116,892Selenium Blood Test – Deficiency TestingLowell114,804Selenium Blood Test – Deficiency TestingBrockton104,216Selenium Blood Test – Deficiency TestingQuincy100,544Selenium Blood Test – Deficiency TestingLynn100,233Selenium Blood Test – Deficiency TestingFall River93,339Selenium Blood Test – Deficiency TestingNewton88,647Selenium Blood Test – Deficiency TestingLawrence87,798Selenium Blood Test – Deficiency TestingSomerville80,608Selenium Blood Test – Deficiency TestingFramingham72,089Selenium Blood Test – Deficiency TestingHaverhill67,093Selenium Blood Test – Deficiency TestingMalden65,602Selenium Blood Test – Deficiency TestingWaltham64,655Selenium Blood Test – Deficiency TestingRevere60,720Selenium Blood Test – Deficiency TestingMedford60,708Selenium Blood Test – Deficiency TestingTaunton59,076Selenium Blood Test – Deficiency TestingChicopee55,636Selenium Blood Test – Deficiency TestingPeabody54,200Selenium Blood Test – Deficiency TestingMethuen Town52,536Selenium Blood Test – Deficiency TestingEverett48,368Selenium Blood Test – Deficiency TestingAttleboro46,146Selenium Blood Test – Deficiency TestingSalem44,452Selenium Blood Test – Deficiency TestingPittsfield43,890Selenium Blood Test – Deficiency TestingBeverly42,448Selenium Blood Test – Deficiency TestingFitchburg41,796Selenium Blood Test – Deficiency TestingMarlborough41,505Selenium Blood Test – Deficiency TestingWoburn40,967Selenium Blood Test – Deficiency TestingWestfield40,922Selenium Blood Test – Deficiency TestingChelsea40,025Selenium Blood Test – Deficiency TestingHolyoke38,480Selenium Blood Test – Deficiency TestingWatertown Town35,171Selenium Blood Test – Deficiency TestingGloucester29,814Selenium Blood Test – Deficiency TestingMelrose29,567Selenium Blood Test – Deficiency TestingNorthampton29,379Selenium Blood Test – Deficiency TestingGardner21,183Selenium Blood Test – Deficiency TestingNewburyport18,282Selenium Blood Test – Deficiency TestingNorth Adams13,024Selenium Blood Test – Deficiency TestingSouth Yarmouth11,696Selenium Blood Test – Deficiency TestingMiddleborough Center7,790Selenium Blood Test – Deficiency TestingMansfield Center7,689Selenium Blood Test – Deficiency TestingWhitinsville7,329Selenium Blood Test – Deficiency TestingWest Concord7,003Selenium Blood Test – Deficiency TestingCochituate6,966Selenium Blood Test – Deficiency TestingEast Falmouth6,739Selenium Blood Test – Deficiency TestingPinehurst6,653Selenium Blood Test – Deficiency TestingWest Yarmouth6,124Selenium Blood Test – Deficiency TestingYarmouth Port5,872Selenium Blood Test – Deficiency TestingBliss Corner5,529Selenium Blood Test – Deficiency TestingNorth Scituate5,519Selenium Blood Test – Deficiency TestingEast Harwich5,519Selenium Blood Test – Deficiency TestingRaynham Center5,072Selenium Blood Test – Deficiency TestingSmith Mills4,846Selenium Blood Test – Deficiency TestingNorth Westport4,835Selenium Blood Test – Deficiency TestingThe Pinehills4,724Selenium Blood Test – Deficiency TestingMillis-Clicquot4,653Selenium Blood Test – Deficiency Testing