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Midwest · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Iowa

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 Iowa

Here is what you need before ordering and completing the Selenium Blood 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
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 Iowa communities

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

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