Lab test requirements · preparation, ID, referral, and timing United States · 0 communities
LabRequirements Know what your test requires

Mid-Atlantic · Selenium Blood Test – Deficiency Testing

Selenium Blood Test – Deficiency Testing in New York

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 New York

Here is what you need before ordering and completing the Selenium Blood Test – Deficiency Testing in NY. 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, including NY. 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 New York communities

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

New York18,972,871Selenium Blood Test – Deficiency TestingBrooklyn2,736,074Selenium Blood Test – Deficiency TestingQueens2,405,464Selenium Blood Test – Deficiency TestingManhattan1,694,263Selenium Blood Test – Deficiency TestingBronx1,472,654Selenium Blood Test – Deficiency TestingBuffalo1,004,655Selenium Blood Test – Deficiency TestingRochester737,309Selenium Blood Test – Deficiency TestingAlbany604,077Selenium Blood Test – Deficiency TestingStaten Island495,747Selenium Blood Test – Deficiency TestingPoughkeepsie423,386Selenium Blood Test – Deficiency TestingSyracuse418,875Selenium Blood Test – Deficiency TestingYonkers209,730Selenium Blood Test – Deficiency TestingBinghamton146,870Selenium Blood Test – Deficiency TestingUtica112,948Selenium Blood Test – Deficiency TestingNew Rochelle80,685Selenium Blood Test – Deficiency TestingMount Vernon72,855Selenium Blood Test – Deficiency TestingSchenectady66,809Selenium Blood Test – Deficiency TestingSaratoga Springs66,290Selenium Blood Test – Deficiency TestingBrentwood66,035Selenium Blood Test – Deficiency TestingGlens Falls66,024Selenium Blood Test – Deficiency TestingElmira63,404Selenium Blood Test – Deficiency TestingWhite Plains59,452Selenium Blood Test – Deficiency TestingLevittown52,540Selenium Blood Test – Deficiency TestingTroy50,717Selenium Blood Test – Deficiency TestingNiagara Falls48,763Selenium Blood Test – Deficiency TestingFreeport44,328Selenium Blood Test – Deficiency TestingWest Babylon43,397Selenium Blood Test – Deficiency TestingHicksville43,107Selenium Blood Test – Deficiency TestingCoram41,431Selenium Blood Test – Deficiency TestingValley Stream40,304Selenium Blood Test – Deficiency TestingEast Meadow38,078Selenium Blood Test – Deficiency TestingElmont36,741Selenium Blood Test – Deficiency TestingCentral Islip36,292Selenium Blood Test – Deficiency TestingCommack36,252Selenium Blood Test – Deficiency TestingLong Beach34,820Selenium Blood Test – Deficiency TestingNew City34,118Selenium Blood Test – Deficiency TestingHuntington Station34,050Selenium Blood Test – Deficiency TestingBaldwin33,352Selenium Blood Test – Deficiency TestingSpring Valley32,953Selenium Blood Test – Deficiency TestingUniondale32,791Selenium Blood Test – Deficiency TestingKiryas Joel32,498Selenium Blood Test – Deficiency TestingFranklin Square32,381Selenium Blood Test – Deficiency TestingRome32,309Selenium Blood Test – Deficiency TestingCentereach31,979Selenium Blood Test – Deficiency TestingIthaca31,819Selenium Blood Test – Deficiency TestingBay Shore31,488Selenium Blood Test – Deficiency TestingPort Chester31,317Selenium Blood Test – Deficiency TestingOceanside31,182Selenium Blood Test – Deficiency TestingNorth Tonawanda30,592Selenium Blood Test – Deficiency TestingMiddletown30,086Selenium Blood Test – Deficiency TestingJamestown28,818Selenium Blood Test – Deficiency TestingHarrison28,635Selenium Blood Test – Deficiency TestingGlen Cove28,187Selenium Blood Test – Deficiency TestingShirley28,059Selenium Blood Test – Deficiency TestingWest Islip27,557Selenium Blood Test – Deficiency TestingMonsey27,359Selenium Blood Test – Deficiency TestingLindenhurst27,169Selenium Blood Test – Deficiency TestingHolbrook26,958Selenium Blood Test – Deficiency TestingAuburn26,913Selenium Blood Test – Deficiency TestingDeer Park26,803Selenium Blood Test – Deficiency Testing