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Mountain West · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Idaho

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 Idaho

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

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

Boise422,665Selenium Blood Test – Deficiency TestingNampa194,547Selenium Blood Test – Deficiency TestingMeridian115,227Selenium Blood Test – Deficiency TestingCoeur d'Alene114,880Selenium Blood Test – Deficiency TestingIdaho Falls101,326Selenium Blood Test – Deficiency TestingPocatello74,359Selenium Blood Test – Deficiency TestingCaldwell58,872Selenium Blood Test – Deficiency TestingTwin Falls51,223Selenium Blood Test – Deficiency TestingPost Falls38,162Selenium Blood Test – Deficiency TestingLewiston33,964Selenium Blood Test – Deficiency TestingRexburg33,684Selenium Blood Test – Deficiency TestingEagle29,665Selenium Blood Test – Deficiency TestingMoscow25,336Selenium Blood Test – Deficiency TestingKuna23,765Selenium Blood Test – Deficiency TestingAmmon17,401Selenium Blood Test – Deficiency TestingMountain Home15,863Selenium Blood Test – Deficiency TestingChubbuck15,445Selenium Blood Test – Deficiency TestingHayden15,316Selenium Blood Test – Deficiency TestingJerome12,182Selenium Blood Test – Deficiency TestingBlackfoot12,106Selenium Blood Test – Deficiency TestingGarden City12,056Selenium Blood Test – Deficiency TestingBurley11,274Selenium Blood Test – Deficiency TestingStar10,929Selenium Blood Test – Deficiency TestingRathdrum9,099Selenium Blood Test – Deficiency TestingMiddleton9,091Selenium Blood Test – Deficiency TestingHailey9,001Selenium Blood Test – Deficiency TestingSandpoint8,448Selenium Blood Test – Deficiency TestingPayette7,999Selenium Blood Test – Deficiency TestingEmmett7,408Selenium Blood Test – Deficiency TestingRupert5,994Selenium Blood Test – Deficiency TestingFruitland5,903Selenium Blood Test – Deficiency TestingWeiser5,578Selenium Blood Test – Deficiency TestingPreston5,545Selenium Blood Test – Deficiency TestingRigby4,920Selenium Blood Test – Deficiency TestingShelley4,784Selenium Blood Test – Deficiency TestingBuhl4,532Selenium Blood Test – Deficiency TestingAmerican Falls4,531Selenium Blood Test – Deficiency TestingKimberly4,508Selenium Blood Test – Deficiency TestingLincoln3,919Selenium Blood Test – Deficiency TestingSt. Anthony3,677Selenium Blood Test – Deficiency TestingGooding3,625Selenium Blood Test – Deficiency TestingHeyburn3,592Selenium Blood Test – Deficiency TestingMcCall3,568Selenium Blood Test – Deficiency TestingKetchum3,448Selenium Blood Test – Deficiency TestingHidden Springs3,382Selenium Blood Test – Deficiency TestingVictor3,315Selenium Blood Test – Deficiency TestingGrangeville3,296Selenium Blood Test – Deficiency TestingOrofino3,216Selenium Blood Test – Deficiency TestingSalmon3,114Selenium Blood Test – Deficiency TestingSoda Springs3,084Selenium Blood Test – Deficiency TestingSt. Maries2,951Selenium Blood Test – Deficiency TestingMountain Home AFB2,863Selenium Blood Test – Deficiency TestingWendell2,859Selenium Blood Test – Deficiency TestingHomedale2,845Selenium Blood Test – Deficiency TestingAberdeen2,795Selenium Blood Test – Deficiency TestingFiler2,734Selenium Blood Test – Deficiency TestingIona2,640Selenium Blood Test – Deficiency TestingMontpelier2,610Selenium Blood Test – Deficiency TestingBellevue2,508Selenium Blood Test – Deficiency TestingFort Hall2,499Selenium Blood Test – Deficiency Testing