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South · Selenium Urine Test – Deficiency Testing

Selenium Urine Test – Deficiency Testing in Texas

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 Texas

Here is what you need before ordering and completing the Selenium Urine Test – Deficiency Testing in TX. 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 Texas communities

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

Dallas5,668,165Selenium Urine Test – Deficiency TestingHouston5,650,910Selenium Urine Test – Deficiency TestingSan Antonio1,910,785Selenium Urine Test – Deficiency TestingAustin1,659,251Selenium Urine Test – Deficiency TestingFort Worth908,469Selenium Urine Test – Deficiency TestingMcAllen809,002Selenium Urine Test – Deficiency TestingEl Paso794,344Selenium Urine Test – Deficiency TestingDenton445,814Selenium Urine Test – Deficiency TestingArlington392,304Selenium Urine Test – Deficiency TestingCorpus Christi333,764Selenium Urine Test – Deficiency TestingThe Woodlands292,380Selenium Urine Test – Deficiency TestingPlano282,181Selenium Urine Test – Deficiency TestingLubbock259,946Selenium Urine Test – Deficiency TestingLaredo256,748Selenium Urine Test – Deficiency TestingIrving254,184Selenium Urine Test – Deficiency TestingMcKinney248,840Selenium Urine Test – Deficiency TestingGarland245,075Selenium Urine Test – Deficiency TestingKilleen238,288Selenium Urine Test – Deficiency TestingBrownsville235,735Selenium Urine Test – Deficiency TestingCollege Station207,514Selenium Urine Test – Deficiency TestingAmarillo204,357Selenium Urine Test – Deficiency TestingGrand Prairie195,992Selenium Urine Test – Deficiency TestingFrisco193,140Selenium Urine Test – Deficiency TestingWaco187,172Selenium Urine Test – Deficiency TestingPort Arthur156,988Selenium Urine Test – Deficiency TestingPasadena151,964Selenium Urine Test – Deficiency TestingMesquite149,848Selenium Urine Test – Deficiency TestingHarlingen148,545Selenium Urine Test – Deficiency TestingTyler143,895Selenium Urine Test – Deficiency TestingBeaumont137,549Selenium Urine Test – Deficiency TestingOdessa134,793Selenium Urine Test – Deficiency TestingCarrollton131,388Selenium Urine Test – Deficiency TestingMidland130,765Selenium Urine Test – Deficiency TestingAbilene125,474Selenium Urine Test – Deficiency TestingPearland122,609Selenium Urine Test – Deficiency TestingTexas City122,017Selenium Urine Test – Deficiency TestingRound Rock117,735Selenium Urine Test – Deficiency TestingRichardson115,904Selenium Urine Test – Deficiency TestingTemple115,809Selenium Urine Test – Deficiency TestingLeague City111,847Selenium Urine Test – Deficiency TestingSugar Land110,272Selenium Urine Test – Deficiency TestingLewisville110,077Selenium Urine Test – Deficiency TestingAllen102,778Selenium Urine Test – Deficiency TestingWichita Falls102,563Selenium Urine Test – Deficiency TestingSan Angelo100,330Selenium Urine Test – Deficiency TestingEdinburg98,759Selenium Urine Test – Deficiency TestingLongview98,075Selenium Urine Test – Deficiency TestingConroe87,930Selenium Urine Test – Deficiency TestingNew Braunfels87,549Selenium Urine Test – Deficiency TestingMission85,311Selenium Urine Test – Deficiency TestingBryan85,204Selenium Urine Test – Deficiency TestingAtascocita84,222Selenium Urine Test – Deficiency TestingBaytown82,543Selenium Urine Test – Deficiency TestingTexarkana79,304Selenium Urine Test – Deficiency TestingPharr78,997Selenium Urine Test – Deficiency TestingFlower Mound75,050Selenium Urine Test – Deficiency TestingCedar Park74,741Selenium Urine Test – Deficiency TestingMissouri City73,682Selenium Urine Test – Deficiency TestingLake Jackson73,478Selenium Urine Test – Deficiency TestingMansfield71,375Selenium Urine Test – Deficiency Testing