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Pacific · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Oregon

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 Oregon

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

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

Portland2,036,875Selenium Blood Test – Deficiency TestingEugene273,904Selenium Blood Test – Deficiency TestingSalem268,634Selenium Blood Test – Deficiency TestingMedford178,457Selenium Blood Test – Deficiency TestingGresham114,164Selenium Blood Test – Deficiency TestingBend109,224Selenium Blood Test – Deficiency TestingHillsboro105,909Selenium Blood Test – Deficiency TestingBeaverton97,466Selenium Blood Test – Deficiency TestingAlbany66,405Selenium Blood Test – Deficiency TestingCorvallis66,090Selenium Blood Test – Deficiency TestingSpringfield62,138Selenium Blood Test – Deficiency TestingTigard54,750Selenium Blood Test – Deficiency TestingAloha52,704Selenium Blood Test – Deficiency TestingLake Oswego40,390Selenium Blood Test – Deficiency TestingKeizer39,119Selenium Blood Test – Deficiency TestingGrants Pass38,902Selenium Blood Test – Deficiency TestingOregon City37,160Selenium Blood Test – Deficiency TestingMcMinnville34,224Selenium Blood Test – Deficiency TestingRedmond33,160Selenium Blood Test – Deficiency TestingBethany29,277Selenium Blood Test – Deficiency TestingTualatin27,821Selenium Blood Test – Deficiency TestingWest Linn27,173Selenium Blood Test – Deficiency TestingWilsonville25,887Selenium Blood Test – Deficiency TestingWoodburn25,877Selenium Blood Test – Deficiency TestingForest Grove25,767Selenium Blood Test – Deficiency TestingNewberg25,108Selenium Blood Test – Deficiency TestingRoseburg23,551Selenium Blood Test – Deficiency TestingHappy Valley23,442Selenium Blood Test – Deficiency TestingHayesville21,887Selenium Blood Test – Deficiency TestingKlamath Falls21,710Selenium Blood Test – Deficiency TestingAshland21,348Selenium Blood Test – Deficiency TestingMilwaukie21,108Selenium Blood Test – Deficiency TestingSherwood20,281Selenium Blood Test – Deficiency TestingAltamont19,569Selenium Blood Test – Deficiency TestingHermiston19,141Selenium Blood Test – Deficiency TestingCedar Mill18,987Selenium Blood Test – Deficiency TestingCentral Point18,948Selenium Blood Test – Deficiency TestingLebanon18,150Selenium Blood Test – Deficiency TestingCanby18,078Selenium Blood Test – Deficiency TestingOak Grove17,382Selenium Blood Test – Deficiency TestingPendleton16,861Selenium Blood Test – Deficiency TestingDallas16,663Selenium Blood Test – Deficiency TestingFour Corners16,608Selenium Blood Test – Deficiency TestingTroutdale16,353Selenium Blood Test – Deficiency TestingThe Dalles15,942Selenium Blood Test – Deficiency TestingCoos Bay15,921Selenium Blood Test – Deficiency TestingSt. Helens13,808Selenium Blood Test – Deficiency TestingLa Grande13,212Selenium Blood Test – Deficiency TestingOatfield12,993Selenium Blood Test – Deficiency TestingCornelius12,893Selenium Blood Test – Deficiency TestingSandy12,383Selenium Blood Test – Deficiency TestingGladstone12,017Selenium Blood Test – Deficiency TestingOak Hills11,715Selenium Blood Test – Deficiency TestingSanta Clara11,680Selenium Blood Test – Deficiency TestingOntario11,465Selenium Blood Test – Deficiency TestingDamascus10,878Selenium Blood Test – Deficiency TestingMonmouth10,735Selenium Blood Test – Deficiency TestingPrineville10,611Selenium Blood Test – Deficiency TestingCottage Grove10,569Selenium Blood Test – Deficiency TestingFairview10,439Selenium Blood Test – Deficiency Testing