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Midwest · Selenium Urine Test – Deficiency Testing

Selenium Urine Test – Deficiency Testing in Illinois

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 Illinois

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

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

Chicago8,595,181Selenium Urine Test – Deficiency TestingRockford289,763Selenium Urine Test – Deficiency TestingRound Lake Beach287,012Selenium Urine Test – Deficiency TestingPeoria255,718Selenium Urine Test – Deficiency TestingAurora183,447Selenium Urine Test – Deficiency TestingSpringfield162,588Selenium Urine Test – Deficiency TestingChampaign153,278Selenium Urine Test – Deficiency TestingJoliet150,323Selenium Urine Test – Deficiency TestingNaperville149,013Selenium Urine Test – Deficiency TestingBloomington134,357Selenium Urine Test – Deficiency TestingElgin114,156Selenium Urine Test – Deficiency TestingWaukegan89,751Selenium Urine Test – Deficiency TestingDecatur88,002Selenium Urine Test – Deficiency TestingCicero84,905Selenium Urine Test – Deficiency TestingAlton83,705Selenium Urine Test – Deficiency TestingKankakee82,095Selenium Urine Test – Deficiency TestingEvanston78,454Selenium Urine Test – Deficiency TestingSchaumburg78,053Selenium Urine Test – Deficiency TestingArlington Heights77,283Selenium Urine Test – Deficiency TestingBolingbrook73,807Selenium Urine Test – Deficiency TestingPalatine67,754Selenium Urine Test – Deficiency TestingSkokie67,444Selenium Urine Test – Deficiency TestingDeKalb66,624Selenium Urine Test – Deficiency TestingCarbondale66,482Selenium Urine Test – Deficiency TestingDes Plaines60,413Selenium Urine Test – Deficiency TestingOrland Park58,622Selenium Urine Test – Deficiency TestingOak Lawn58,032Selenium Urine Test – Deficiency TestingBerwyn56,960Selenium Urine Test – Deficiency TestingMount Prospect56,510Selenium Urine Test – Deficiency TestingTinley Park55,988Selenium Urine Test – Deficiency TestingOak Park54,100Selenium Urine Test – Deficiency TestingWheaton53,762Selenium Urine Test – Deficiency TestingNormal53,446Selenium Urine Test – Deficiency TestingHoffman Estates52,153Selenium Urine Test – Deficiency TestingDowners Grove50,209Selenium Urine Test – Deficiency TestingGlenview48,150Selenium Urine Test – Deficiency TestingElmhurst45,661Selenium Urine Test – Deficiency TestingLombard44,311Selenium Urine Test – Deficiency TestingPlainfield44,296Selenium Urine Test – Deficiency TestingBuffalo Grove43,062Selenium Urine Test – Deficiency TestingMoline42,660Selenium Urine Test – Deficiency TestingBelleville42,463Selenium Urine Test – Deficiency TestingBartlett41,126Selenium Urine Test – Deficiency TestingRomeoville40,099Selenium Urine Test – Deficiency TestingCrystal Lake40,082Selenium Urine Test – Deficiency TestingCarol Stream39,895Selenium Urine Test – Deficiency TestingStreamwood39,736Selenium Urine Test – Deficiency TestingQuincy39,687Selenium Urine Test – Deficiency TestingPark Ridge39,562Selenium Urine Test – Deficiency TestingUrbana39,189Selenium Urine Test – Deficiency TestingWheeling39,104Selenium Urine Test – Deficiency TestingCarpentersville37,940Selenium Urine Test – Deficiency TestingHanover Park37,545Selenium Urine Test – Deficiency TestingRock Island37,519Selenium Urine Test – Deficiency TestingCalumet City36,065Selenium Urine Test – Deficiency TestingAddison35,999Selenium Urine Test – Deficiency TestingNorthbrook35,108Selenium Urine Test – Deficiency TestingOswego34,324Selenium Urine Test – Deficiency TestingWoodridge34,161Selenium Urine Test – Deficiency TestingGlendale Heights33,443Selenium Urine Test – Deficiency Testing