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South · Selenium Urine Test – Deficiency Testing

Selenium Urine Test – Deficiency Testing in Tennessee

This page explains the selenium urine test – deficiency testing, what it measures, and how to order it. A selenium urine test measures how much selenium is excreted in urine, which can reflect recent exposure or body levels. It is used to monitor industrial exposure or help evaluate a possible deficiency.

Sample typeBlood and/or urine at a collection lab
ReferralIncluded — no referral from your own doctor needed

Lab requirements in Tennessee

Here is what you need before ordering and completing the Selenium Urine Test – Deficiency Testing in TN. 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
Some tests require fasting or avoiding certain foods or drinks beforehand. You will be informed when you order — confirm the details with the collection lab.
Preparation
Preparation depends on the type of urine collection and the laboratory's procedures. Follow the specific instructions provided by the collection lab.
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 measures the amount of selenium in a urine sample. Selenium is a trace element that acts as an antioxidant and supports thyroid and immune function. Urine selenium mainly reflects recent intake and excretion, so it is often used alongside other tests.

What it measures

  • Urine selenium — reflects recent selenium intake and excretion
  • Creatinine (if measured) — helps adjust for urine concentration
  • Collection volume (for 24-hour) — used to calculate total daily excretion

What the test involves

You will collect a urine sample, usually a spot sample or a 24-hour collection, following the lab's instructions. The sample is then sent to the laboratory for analysis.

Why it is often ordered

A clinician may order this test to monitor workplace exposure to selenium or to help assess whether selenium levels are too low. It can also be used to follow up on abnormal findings from other tests.

Preparation

Preparation depends on the type of urine collection and the laboratory's procedures. Follow the specific instructions provided by the collection lab.

How results are reported

Results are reported as a concentration or total amount of selenium in the urine, often with a reference range. Reference ranges vary by laboratory and by the type of collection, so your result should be interpreted in that context.

Before you go

  • Whether a spot or 24-hour urine collection is required
  • Any dietary or supplement restrictions before collection
  • How and when to return the sample to the lab

Cities

Selenium Urine Test – Deficiency Testing in Tennessee communities

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

Nashville1,098,486Selenium Urine Test – Deficiency TestingMemphis1,034,498Selenium Urine Test – Deficiency TestingKnoxville619,925Selenium Urine Test – Deficiency TestingChattanooga403,233Selenium Urine Test – Deficiency TestingClarksville198,689Selenium Urine Test – Deficiency TestingMurfreesboro181,450Selenium Urine Test – Deficiency TestingJohnson City131,902Selenium Urine Test – Deficiency TestingKingsport98,767Selenium Urine Test – Deficiency TestingFranklin81,531Selenium Urine Test – Deficiency TestingCleveland72,589Selenium Urine Test – Deficiency TestingJackson71,983Selenium Urine Test – Deficiency TestingBristol69,734Selenium Urine Test – Deficiency TestingHendersonville60,628Selenium Urine Test – Deficiency TestingBartlett57,639Selenium Urine Test – Deficiency TestingSmyrna52,401Selenium Urine Test – Deficiency TestingCollierville50,669Selenium Urine Test – Deficiency TestingSpring Hill48,403Selenium Urine Test – Deficiency TestingBrentwood44,354Selenium Urine Test – Deficiency TestingGallatin43,306Selenium Urine Test – Deficiency TestingColumbia40,957Selenium Urine Test – Deficiency TestingGermantown40,955Selenium Urine Test – Deficiency TestingLa Vergne38,127Selenium Urine Test – Deficiency TestingMount Juliet38,059Selenium Urine Test – Deficiency TestingLebanon37,471Selenium Urine Test – Deficiency TestingCookeville34,068Selenium Urine Test – Deficiency TestingMaryville31,281Selenium Urine Test – Deficiency TestingOak Ridge31,087Selenium Urine Test – Deficiency TestingMorristown30,387Selenium Urine Test – Deficiency TestingFarragut23,388Selenium Urine Test – Deficiency TestingShelbyville23,005Selenium Urine Test – Deficiency TestingEast Ridge21,967Selenium Urine Test – Deficiency TestingTullahoma20,599Selenium Urine Test – Deficiency TestingSpringfield18,561Selenium Urine Test – Deficiency TestingSevierville18,038Selenium Urine Test – Deficiency TestingGoodlettsville17,522Selenium Urine Test – Deficiency TestingDyersburg16,235Selenium Urine Test – Deficiency TestingDickson15,855Selenium Urine Test – Deficiency TestingSeymour15,633Selenium Urine Test – Deficiency TestingGreeneville15,361Selenium Urine Test – Deficiency TestingArlington14,158Selenium Urine Test – Deficiency TestingElizabethton14,112Selenium Urine Test – Deficiency TestingAthens13,961Selenium Urine Test – Deficiency TestingPowell13,855Selenium Urine Test – Deficiency TestingMcMinnville13,699Selenium Urine Test – Deficiency TestingLakeland13,693Selenium Urine Test – Deficiency TestingNolensville13,393Selenium Urine Test – Deficiency TestingSoddy-Daisy13,090Selenium Urine Test – Deficiency TestingPortland13,031Selenium Urine Test – Deficiency TestingWhite House12,820Selenium Urine Test – Deficiency TestingLewisburg12,131Selenium Urine Test – Deficiency TestingManchester11,956Selenium Urine Test – Deficiency TestingCrossville11,892Selenium Urine Test – Deficiency TestingRed Bank11,855Selenium Urine Test – Deficiency TestingMiddle Valley11,569Selenium Urine Test – Deficiency TestingHartsville11,463Selenium Urine Test – Deficiency TestingLawrenceburg11,460Selenium Urine Test – Deficiency TestingUnion City11,119Selenium Urine Test – Deficiency TestingCollegedale10,973Selenium Urine Test – Deficiency TestingAlcoa10,777Selenium Urine Test – Deficiency TestingMillington10,583Selenium Urine Test – Deficiency Testing