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South · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Louisiana

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 Louisiana

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

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

New Orleans925,443Selenium Blood Test – Deficiency TestingBaton Rouge610,751Selenium Blood Test – Deficiency TestingShreveport286,200Selenium Blood Test – Deficiency TestingLafayette254,286Selenium Blood Test – Deficiency TestingLake Charles150,036Selenium Blood Test – Deficiency TestingHouma146,665Selenium Blood Test – Deficiency TestingMetairie140,590Selenium Blood Test – Deficiency TestingMonroe117,197Selenium Blood Test – Deficiency TestingMandeville105,097Selenium Blood Test – Deficiency TestingSlidell94,498Selenium Blood Test – Deficiency TestingAlexandria75,835Selenium Blood Test – Deficiency TestingHammond75,688Selenium Blood Test – Deficiency TestingKenner66,411Selenium Blood Test – Deficiency TestingBossier City63,168Selenium Blood Test – Deficiency TestingPrairieville34,118Selenium Blood Test – Deficiency TestingMarrero31,928Selenium Blood Test – Deficiency TestingCentral29,746Selenium Blood Test – Deficiency TestingLaplace29,129Selenium Blood Test – Deficiency TestingNew Iberia28,844Selenium Blood Test – Deficiency TestingTerrytown25,388Selenium Blood Test – Deficiency TestingRuston22,286Selenium Blood Test – Deficiency TestingChalmette21,981Selenium Blood Test – Deficiency TestingBayou Cane21,699Selenium Blood Test – Deficiency TestingSulphur21,490Selenium Blood Test – Deficiency TestingHarvey20,942Selenium Blood Test – Deficiency TestingShenandoah20,068Selenium Blood Test – Deficiency TestingZachary19,278Selenium Blood Test – Deficiency TestingNatchitoches18,105Selenium Blood Test – Deficiency TestingGretna17,836Selenium Blood Test – Deficiency TestingEstelle17,650Selenium Blood Test – Deficiency TestingOpelousas15,884Selenium Blood Test – Deficiency TestingThibodaux15,242Selenium Blood Test – Deficiency TestingYoungsville15,167Selenium Blood Test – Deficiency TestingPineville14,653Selenium Blood Test – Deficiency TestingLuling14,115Selenium Blood Test – Deficiency TestingRiver Ridge13,435Selenium Blood Test – Deficiency TestingClaiborne13,147Selenium Blood Test – Deficiency TestingWest Monroe13,103Selenium Blood Test – Deficiency TestingBroussard12,960Selenium Blood Test – Deficiency TestingBaker12,736Selenium Blood Test – Deficiency TestingMinden12,145Selenium Blood Test – Deficiency TestingGonzales12,080Selenium Blood Test – Deficiency TestingCrowley11,916Selenium Blood Test – Deficiency TestingDestrehan11,827Selenium Blood Test – Deficiency TestingMorgan City11,525Selenium Blood Test – Deficiency TestingMoss Bluff11,453Selenium Blood Test – Deficiency TestingWoodmere11,343Selenium Blood Test – Deficiency TestingAbbeville11,313Selenium Blood Test – Deficiency TestingBayou Blue11,229Selenium Blood Test – Deficiency TestingWaggaman11,161Selenium Blood Test – Deficiency TestingCovington11,155Selenium Blood Test – Deficiency TestingRaceland11,002Selenium Blood Test – Deficiency TestingGardere10,971Selenium Blood Test – Deficiency TestingBogalusa10,921Selenium Blood Test – Deficiency TestingTimberlane10,697Selenium Blood Test – Deficiency TestingJefferson10,500Selenium Blood Test – Deficiency TestingBelle Chasse10,406Selenium Blood Test – Deficiency TestingDeRidder10,060Selenium Blood Test – Deficiency TestingBastrop9,879Selenium Blood Test – Deficiency TestingJennings9,836Selenium Blood Test – Deficiency Testing