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

Mid-Atlantic · Selenium Urine Test – Deficiency Testing

Selenium Urine Test – Deficiency Testing in Delaware

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 Delaware

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

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

Dover125,931Selenium Urine Test – Deficiency TestingWilmington70,926Selenium Urine Test – Deficiency TestingNewark31,393Selenium Urine Test – Deficiency TestingMiddletown23,001Selenium Urine Test – Deficiency TestingBear21,625Selenium Urine Test – Deficiency TestingGlasgow15,342Selenium Urine Test – Deficiency TestingBrookside14,202Selenium Urine Test – Deficiency TestingHockessin13,464Selenium Urine Test – Deficiency TestingSmyrna12,619Selenium Urine Test – Deficiency TestingPike Creek Valley11,718Selenium Urine Test – Deficiency TestingMilford11,249Selenium Urine Test – Deficiency TestingClaymont9,508Selenium Urine Test – Deficiency TestingWilmington Manor8,212Selenium Urine Test – Deficiency TestingNorth Star8,009Selenium Urine Test – Deficiency TestingSeaford7,852Selenium Urine Test – Deficiency TestingPike Creek7,398Selenium Urine Test – Deficiency TestingGeorgetown7,079Selenium Urine Test – Deficiency TestingEdgemoor6,681Selenium Urine Test – Deficiency TestingMillsboro6,542Selenium Urine Test – Deficiency TestingElsmere6,167Selenium Urine Test – Deficiency TestingNew Castle5,482Selenium Urine Test – Deficiency TestingHighland Acres3,910Selenium Urine Test – Deficiency TestingLaurel3,886Selenium Urine Test – Deficiency TestingClayton3,845Selenium Urine Test – Deficiency TestingCamden3,786Selenium Urine Test – Deficiency TestingRising Sun-Lebanon3,772Selenium Urine Test – Deficiency TestingHarrington3,730Selenium Urine Test – Deficiency TestingLewes3,257Selenium Urine Test – Deficiency TestingMilton3,224Selenium Urine Test – Deficiency TestingDover Base Housing3,135Selenium Urine Test – Deficiency TestingLong Neck3,022Selenium Urine Test – Deficiency TestingSelbyville2,806Selenium Urine Test – Deficiency TestingGreenville2,763Selenium Urine Test – Deficiency TestingTownsend2,671Selenium Urine Test – Deficiency TestingOcean View2,556Selenium Urine Test – Deficiency TestingBridgeville2,499Selenium Urine Test – Deficiency TestingDelmar2,241Selenium Urine Test – Deficiency TestingRiverview2,091Selenium Urine Test – Deficiency TestingDelaware City1,885Selenium Urine Test – Deficiency TestingWoodside East1,867Selenium Urine Test – Deficiency TestingMillville1,790Selenium Urine Test – Deficiency TestingKent Acres1,756Selenium Urine Test – Deficiency TestingCheswold1,705Selenium Urine Test – Deficiency TestingWyoming1,636Selenium Urine Test – Deficiency TestingRodney Village1,472Selenium Urine Test – Deficiency TestingGreenwood1,459Selenium Urine Test – Deficiency TestingRehoboth Beach1,392Selenium Urine Test – Deficiency TestingBellefonte1,294Selenium Urine Test – Deficiency TestingNewport1,224Selenium Urine Test – Deficiency TestingSt. Georges1,197Selenium Urine Test – Deficiency TestingFelton1,144Selenium Urine Test – Deficiency TestingFrankford1,088Selenium Urine Test – Deficiency TestingDagsboro1,087Selenium Urine Test – Deficiency Testing