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Mid-Atlantic · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in Pennsylvania

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 Pennsylvania

Here is what you need before ordering and completing the Selenium Blood Test – Deficiency Testing in PA. 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 Pennsylvania communities

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

Philadelphia5,512,873Selenium Blood Test – Deficiency TestingPittsburgh1,720,279Selenium Blood Test – Deficiency TestingAllentown714,136Selenium Blood Test – Deficiency TestingHarrisburg472,261Selenium Blood Test – Deficiency TestingLancaster430,621Selenium Blood Test – Deficiency TestingScranton376,974Selenium Blood Test – Deficiency TestingReading299,068Selenium Blood Test – Deficiency TestingYork236,818Selenium Blood Test – Deficiency TestingErie186,489Selenium Blood Test – Deficiency TestingPottstown115,413Selenium Blood Test – Deficiency TestingState College88,526Selenium Blood Test – Deficiency TestingLebanon80,620Selenium Blood Test – Deficiency TestingBethlehem75,599Selenium Blood Test – Deficiency TestingAltoona73,374Selenium Blood Test – Deficiency TestingHanover67,037Selenium Blood Test – Deficiency TestingLevittown51,100Selenium Blood Test – Deficiency TestingWilkes-Barre44,086Selenium Blood Test – Deficiency TestingNorristown35,607Selenium Blood Test – Deficiency TestingBethel Park33,356Selenium Blood Test – Deficiency TestingChester32,819Selenium Blood Test – Deficiency TestingHazleton29,339Selenium Blood Test – Deficiency TestingMonroeville28,607Selenium Blood Test – Deficiency TestingDrexel Hill28,538Selenium Blood Test – Deficiency TestingWilliamsport27,908Selenium Blood Test – Deficiency TestingEaston27,860Selenium Blood Test – Deficiency TestingPlum27,123Selenium Blood Test – Deficiency TestingKing of Prussia23,841Selenium Blood Test – Deficiency TestingAllison Park23,160Selenium Blood Test – Deficiency TestingChambersburg22,141Selenium Blood Test – Deficiency TestingNew Castle21,992Selenium Blood Test – Deficiency TestingBaldwin21,274Selenium Blood Test – Deficiency TestingMurrysville20,810Selenium Blood Test – Deficiency TestingCarlisle19,869Selenium Blood Test – Deficiency TestingWest Mifflin19,638Selenium Blood Test – Deficiency TestingJohnstown18,647Selenium Blood Test – Deficiency TestingWest Chester18,592Selenium Blood Test – Deficiency TestingLansdale18,509Selenium Blood Test – Deficiency TestingPhoenixville18,437Selenium Blood Test – Deficiency TestingMcKeesport17,935Selenium Blood Test – Deficiency TestingHermitage16,240Selenium Blood Test – Deficiency TestingColonial Park16,132Selenium Blood Test – Deficiency TestingFullerton16,131Selenium Blood Test – Deficiency TestingFranklin Park15,239Selenium Blood Test – Deficiency TestingGreensburg14,982Selenium Blood Test – Deficiency TestingHershey14,619Selenium Blood Test – Deficiency TestingWeigelstown14,593Selenium Blood Test – Deficiency TestingWilkinsburg14,492Selenium Blood Test – Deficiency TestingArdmore14,391Selenium Blood Test – Deficiency TestingDunmore14,009Selenium Blood Test – Deficiency TestingWillow Grove13,958Selenium Blood Test – Deficiency TestingEphrata13,767Selenium Blood Test – Deficiency TestingIndiana13,573Selenium Blood Test – Deficiency TestingButler13,452Selenium Blood Test – Deficiency TestingPottsville13,413Selenium Blood Test – Deficiency TestingWashington13,322Selenium Blood Test – Deficiency TestingCoatesville13,306Selenium Blood Test – Deficiency TestingKingston13,304Selenium Blood Test – Deficiency TestingSharon13,203Selenium Blood Test – Deficiency TestingCarnot-Moon13,196Selenium Blood Test – Deficiency TestingMeadville12,999Selenium Blood Test – Deficiency Testing