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New England · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Connecticut

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 Connecticut

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

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

Bridgeport975,078Selenium Blood Test – Deficiency TestingHartford907,046Selenium Blood Test – Deficiency TestingNew Haven587,648Selenium Blood Test – Deficiency TestingNorwich201,726Selenium Blood Test – Deficiency TestingWaterbury199,552Selenium Blood Test – Deficiency TestingDanbury177,722Selenium Blood Test – Deficiency TestingStamford134,820Selenium Blood Test – Deficiency TestingNorwalk90,821Selenium Blood Test – Deficiency TestingNew Britain74,022Selenium Blood Test – Deficiency TestingMeriden60,790Selenium Blood Test – Deficiency TestingBristol60,733Selenium Blood Test – Deficiency TestingWest Haven55,518Selenium Blood Test – Deficiency TestingMilford city 50,694Selenium Blood Test – Deficiency TestingMiddletown47,164Selenium Blood Test – Deficiency TestingShelton40,944Selenium Blood Test – Deficiency TestingTorrington35,447Selenium Blood Test – Deficiency TestingNaugatuck31,586Selenium Blood Test – Deficiency TestingNew London27,585Selenium Blood Test – Deficiency TestingWallingford Center19,211Selenium Blood Test – Deficiency TestingAnsonia18,945Selenium Blood Test – Deficiency TestingWillimantic18,150Selenium Blood Test – Deficiency TestingStorrs16,784Selenium Blood Test – Deficiency TestingDerby12,387Selenium Blood Test – Deficiency TestingTrumbull Center10,468Selenium Blood Test – Deficiency TestingKensington9,626Selenium Blood Test – Deficiency TestingOakville9,507Selenium Blood Test – Deficiency TestingConning Towers Nautilus Park9,479Selenium Blood Test – Deficiency TestingSandy Hook9,406Selenium Blood Test – Deficiency TestingRiverside9,133Selenium Blood Test – Deficiency TestingLong Hill8,307Selenium Blood Test – Deficiency TestingGlastonbury Center8,187Selenium Blood Test – Deficiency TestingThompsonville8,134Selenium Blood Test – Deficiency TestingSouthwood Acres7,875Selenium Blood Test – Deficiency TestingRockville7,612Selenium Blood Test – Deficiency TestingNew Canaan7,399Selenium Blood Test – Deficiency TestingStaples7,125Selenium Blood Test – Deficiency TestingCos Cob7,089Selenium Blood Test – Deficiency TestingOld Greenwich6,929Selenium Blood Test – Deficiency TestingWinsted6,662Selenium Blood Test – Deficiency TestingNorthford6,117Selenium Blood Test – Deficiency TestingSimsbury Center6,072Selenium Blood Test – Deficiency TestingHazardville6,070Selenium Blood Test – Deficiency TestingCheshire Village6,006Selenium Blood Test – Deficiency TestingBranford Center5,934Selenium Blood Test – Deficiency TestingDaniels Farm5,764Selenium Blood Test – Deficiency TestingSherwood Manor5,710Selenium Blood Test – Deficiency TestingNoroton5,682Selenium Blood Test – Deficiency TestingPawcatuck5,383Selenium Blood Test – Deficiency TestingLake Pocotopaug5,124Selenium Blood Test – Deficiency TestingTerryville5,110Selenium Blood Test – Deficiency TestingByram4,994Selenium Blood Test – Deficiency TestingLong Hill4,645Selenium Blood Test – Deficiency TestingQuinnipiac University4,614Selenium Blood Test – Deficiency TestingStafford Springs4,611Selenium Blood Test – Deficiency TestingMystic4,354Selenium Blood Test – Deficiency TestingEast Village4,250Selenium Blood Test – Deficiency TestingHeritage Village4,232Selenium Blood Test – Deficiency TestingDanielson4,146Selenium Blood Test – Deficiency TestingBroad Brook4,145Selenium Blood Test – Deficiency TestingOronoque3,790Selenium Blood Test – Deficiency Testing