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Midwest · Selenium Urine Test – Deficiency Testing

Selenium Urine Test – Deficiency Testing in Iowa

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 Iowa

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

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

Des Moines514,654Selenium Urine Test – Deficiency TestingDavenport280,282Selenium Urine Test – Deficiency TestingCedar Rapids192,714Selenium Urine Test – Deficiency TestingIowa City120,015Selenium Urine Test – Deficiency TestingWaterloo114,594Selenium Urine Test – Deficiency TestingSioux City111,924Selenium Urine Test – Deficiency TestingDubuque67,916Selenium Urine Test – Deficiency TestingWest Des Moines67,640Selenium Urine Test – Deficiency TestingAnkeny66,346Selenium Urine Test – Deficiency TestingAmes66,027Selenium Urine Test – Deficiency TestingCouncil Bluffs62,617Selenium Urine Test – Deficiency TestingUrbandale45,037Selenium Urine Test – Deficiency TestingMarion41,023Selenium Urine Test – Deficiency TestingCedar Falls40,500Selenium Urine Test – Deficiency TestingBettendorf38,631Selenium Urine Test – Deficiency TestingMarshalltown27,570Selenium Urine Test – Deficiency TestingMason City27,385Selenium Urine Test – Deficiency TestingOttumwa25,379Selenium Urine Test – Deficiency TestingFort Dodge24,826Selenium Urine Test – Deficiency TestingClinton24,651Selenium Urine Test – Deficiency TestingBurlington24,160Selenium Urine Test – Deficiency TestingMuscatine23,759Selenium Urine Test – Deficiency TestingWaukee23,441Selenium Urine Test – Deficiency TestingJohnston23,418Selenium Urine Test – Deficiency TestingCoralville22,226Selenium Urine Test – Deficiency TestingNorth Liberty19,976Selenium Urine Test – Deficiency TestingAltoona19,345Selenium Urine Test – Deficiency TestingClive18,323Selenium Urine Test – Deficiency TestingNewton15,688Selenium Urine Test – Deficiency TestingIndianola15,544Selenium Urine Test – Deficiency TestingGrimes14,842Selenium Urine Test – Deficiency TestingNorwalk12,592Selenium Urine Test – Deficiency TestingBoone12,509Selenium Urine Test – Deficiency TestingOskaloosa11,552Selenium Urine Test – Deficiency TestingSpencer11,292Selenium Urine Test – Deficiency TestingStorm Lake11,166Selenium Urine Test – Deficiency TestingLe Mars10,462Selenium Urine Test – Deficiency TestingPella10,414Selenium Urine Test – Deficiency TestingFort Madison10,340Selenium Urine Test – Deficiency TestingWaverly10,278Selenium Urine Test – Deficiency TestingCarroll10,261Selenium Urine Test – Deficiency TestingPleasant Hill10,203Selenium Urine Test – Deficiency TestingKeokuk9,977Selenium Urine Test – Deficiency TestingFairfield9,653Selenium Urine Test – Deficiency TestingGrinnell9,481Selenium Urine Test – Deficiency TestingMount Pleasant8,996Selenium Urine Test – Deficiency TestingDenison8,323Selenium Urine Test – Deficiency TestingSioux Center8,090Selenium Urine Test – Deficiency TestingPerry7,836Selenium Urine Test – Deficiency TestingWebster City7,825Selenium Urine Test – Deficiency TestingDecorah7,767Selenium Urine Test – Deficiency TestingClear Lake7,673Selenium Urine Test – Deficiency TestingCreston7,594Selenium Urine Test – Deficiency TestingKnoxville7,537Selenium Urine Test – Deficiency TestingCharles City7,399Selenium Urine Test – Deficiency TestingWashington7,314Selenium Urine Test – Deficiency TestingHiawatha7,184Selenium Urine Test – Deficiency TestingBondurant7,163Selenium Urine Test – Deficiency TestingNevada7,017Selenium Urine Test – Deficiency TestingAtlantic6,795Selenium Urine Test – Deficiency Testing