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Selenium, Blood Test

Order online, visit a nearby lab, and get private results online. No doctor's visit or insurance needed.

  • 4,500+ CLIA-certified labsNo appointment needed for most tests
  • Physician-orderedNo doctor’s visit or referral needed
  • Secure and confidentialNot billed to insurance
  • Most results in 1–3 daysIn your secure online account
  • HSA/FSA cards acceptedItemized receipt available

Price $179 Compare at $358

You save $179 · 50% off

110% price guarantee · No hidden fees

How to prepare No fasting needed

About this test

Selenium is an antioxidant that plays an important role in reproduction, thyroid hormone metabolism, DNA synthesis, and protection from oxidative damage and infection. Selenium is readily available in many foods.

This blood test is used to monitor industrial exposure to selenium or to determine a selenium deficiency.


Deficient selenium levels can lead to:

  • Viral cardiomyopathy in children and young women (called Keshan disease)
  • Chronic osteoarthropathy in children (Kashin-Beck disease)
  • Muscle tenderness and pain

Selenium levels that are too high can lead to:

  • Abnormal nails
  • Facial flushing
  • Hair loss
  • Severe gastrointestinal symptoms
  • Muscle tenderness
  • Lightheadedness fatigue
  • Kidney failure
  • Cardiac failure

Major dietary sources of selenium include:

  • Brazil nuts
  • Fish, especially yellowfin tuna
  • Beef and organ meats
  • Poultry
  • Cottage cheese
  • Whole grains
  • Shrimp
  • Spinach

Selenium deficiency can be more prevalent in people who are:

  • Over the age of 90
  • Undergoing total parenteral nutrition
  • Patients undergoing kidney dialysis
  • Have severe intestinal disorders or severely compromised intestinal function
  • Are gastrointestinal surgery patients
  • People living with HIV
  • Individuals who rely on food grown in selenium-deficient soil
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From order to results

No doctor's visit, no appointment and no insurance paperwork.

  1. TodayOrder online No doctor’s referral or insurance needed. Our physicians provide the lab order.
  2. Same dayWalk in to a nearby lab 4,500+ CLIA-certified U.S. labs. No appointment needed.
  3. 1–3 daysGet your results Most results post to your secure account within 1–3 business days.
  4. NextTake them further Download them to share with your doctor, or text Patient Services with questions.

HealthLabs.com vs. going through your doctor

FeatureHealthLabs.comThrough your doctor
Referral neededNo, our physicians provide the orderUsually requires a visit first
AppointmentWalk in for most testsBook, then wait for a visit
InsuranceNot neededCo-pays and deductibles may apply
Price known upfrontYes, listed next to every testOften not until you're billed
Choose your own testsYes, from our full test menuYour doctor decides
Getting resultsOnline, most in 1–3 business daysOften shared at a follow-up

Selenium, Blood Test

No doctor's visit needed · HSA/FSA cards accepted · 110% price guarantee

Price $179 Compare at $358 You save $179 · 50% off

Selenium, Blood TestPrice $179 Compare at $358 50% off