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Mountain West · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Colorado

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 Colorado

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

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

Denver2,650,725Selenium Blood Test – Deficiency TestingColorado Springs628,808Selenium Blood Test – Deficiency TestingAurora383,496Selenium Blood Test – Deficiency TestingFort Collins301,596Selenium Blood Test – Deficiency TestingLakewood155,608Selenium Blood Test – Deficiency TestingPueblo142,727Selenium Blood Test – Deficiency TestingThornton140,538Selenium Blood Test – Deficiency TestingGreeley135,270Selenium Blood Test – Deficiency TestingGrand Junction134,074Selenium Blood Test – Deficiency TestingArvada122,903Selenium Blood Test – Deficiency TestingBoulder120,818Selenium Blood Test – Deficiency TestingWestminster115,535Selenium Blood Test – Deficiency TestingCentennial107,972Selenium Blood Test – Deficiency TestingLongmont104,035Selenium Blood Test – Deficiency TestingHighlands Ranch103,238Selenium Blood Test – Deficiency TestingLafayette99,475Selenium Blood Test – Deficiency TestingLoveland75,938Selenium Blood Test – Deficiency TestingBroomfield72,697Selenium Blood Test – Deficiency TestingCastle Rock71,037Selenium Blood Test – Deficiency TestingCommerce City61,516Selenium Blood Test – Deficiency TestingParker57,311Selenium Blood Test – Deficiency TestingLittleton45,465Selenium Blood Test – Deficiency TestingSecurity-Widefield40,158Selenium Blood Test – Deficiency TestingBrighton39,895Selenium Blood Test – Deficiency TestingNorthglenn37,899Selenium Blood Test – Deficiency TestingDakota Ridge34,361Selenium Blood Test – Deficiency TestingKen Caryl33,889Selenium Blood Test – Deficiency TestingEnglewood33,500Selenium Blood Test – Deficiency TestingPueblo West32,991Selenium Blood Test – Deficiency TestingWheat Ridge32,340Selenium Blood Test – Deficiency TestingWindsor31,972Selenium Blood Test – Deficiency TestingFountain29,495Selenium Blood Test – Deficiency TestingErie29,367Selenium Blood Test – Deficiency TestingColumbine25,924Selenium Blood Test – Deficiency TestingEvans21,727Selenium Blood Test – Deficiency TestingFour Square Mile21,723Selenium Blood Test – Deficiency TestingLouisville21,091Selenium Blood Test – Deficiency TestingClifton20,122Selenium Blood Test – Deficiency TestingMontrose20,098Selenium Blood Test – Deficiency TestingSherrelwood20,069Selenium Blood Test – Deficiency TestingGolden20,041Selenium Blood Test – Deficiency TestingDurango18,953Selenium Blood Test – Deficiency TestingCimarron Hills18,619Selenium Blood Test – Deficiency TestingCañon City17,157Selenium Blood Test – Deficiency TestingFort Carson16,743Selenium Blood Test – Deficiency TestingJohnstown16,596Selenium Blood Test – Deficiency TestingWelby16,260Selenium Blood Test – Deficiency TestingFirestone15,949Selenium Blood Test – Deficiency TestingGreenwood Village15,548Selenium Blood Test – Deficiency TestingBlack Forest14,375Selenium Blood Test – Deficiency TestingFrederick14,127Selenium Blood Test – Deficiency TestingFederal Heights14,111Selenium Blood Test – Deficiency TestingSterling13,976Selenium Blood Test – Deficiency TestingLone Tree13,701Selenium Blood Test – Deficiency TestingFruita13,296Selenium Blood Test – Deficiency TestingSuperior13,283Selenium Blood Test – Deficiency TestingSteamboat Springs13,193Selenium Blood Test – Deficiency TestingFort Morgan11,483Selenium Blood Test – Deficiency TestingCherry Creek11,389Selenium Blood Test – Deficiency TestingCastle Pines11,296Selenium Blood Test – Deficiency Testing