Selenium Blood Test Cost: Self-Pay Price Comparison

Medical & affiliate disclosure: CTX Stat provides educational laboratory information and is not a substitute for professional medical advice, diagnosis, or treatment. CTX Stat may receive compensation from some outbound provider links when an affiliate program is active; provider comparisons and rankings are based on consumer fit, effective cost, access, policies, and reputation—not commission.

Quick Take

• Typical self-pay selenium blood test cost: about $70–$110 for many direct-order options, with some providers charging more for brand, support, or bundled services.
• Lowest advertised price is not always the real price. Compare the total checkout cost, including physician/order review, service, requisition, and blood draw fees.
• Common specimen: blood, usually serum or plasma; some listings may use whole blood, RBC, or micronutrient versions, which are not always interchangeable.
• Fasting: usually not required, but some providers advise avoiding mineral supplements for a few days before the draw.
• Best value for most shoppers: the least expensive option that uses a convenient accredited collection site, clearly lists mandatory fees, and provides the specimen type your clinician wants.

If you are comparing selenium blood test cost without insurance, the main thing to watch is the effective total cost, not the headline price. Selenium is a specialty trace-element test, so the price can vary more than routine labs such as a CBC or basic metabolic panel. Online self-pay prices commonly fall around $70–$110, but the final checkout amount depends on whether the provider adds a physician order fee, requisition fee, service fee, or blood draw fee.

A selenium blood test measures the amount of selenium in a blood sample. Selenium is an essential trace mineral involved in antioxidant enzymes, thyroid hormone metabolism, immune function, reproduction, and DNA synthesis, as summarized by the NIH Office of Dietary Supplements. Testing is usually considered when a clinician wants to evaluate possible deficiency, supplement excess, unusual dietary patterns, malabsorption risk, kidney dialysis or parenteral nutrition contexts, or possible occupational/environmental exposure. It is not a general screening test everyone needs.

Selenium blood test cost comparison

The table below compares commonly visible self-pay options. Prices may change, discounts may expire, and availability can vary by state, lab network, age, and checkout screening. Use the provider’s current cart as the final source before purchasing.

Provider	Advertised test price	Mandatory fees shown	Effective cost to the patient	Collection / workflow notes
JustLabs	$44	$28 standard lab and physician fees shown at checkout	$72	Quest Diagnostics collection is listed; results typically 3–5 business days.
Ulta Lab Tests	Indexed listings commonly show about $58.95–$65.95 depending on the selenium listing	$12.95 requisition charge is shown in independent indexed listings	About $71.90–$78.90	Quest-based collection is commonly listed; verify the exact selenium version and final cart total.
Labcorp OnDemand	$109 regular price; a promotional price may be displayed	No separate mandatory fee was shown on the selenium product page	$81.75 if the displayed 25% promotion applies; otherwise $109	In-person collection at a Labcorp location; Labcorp lists 2–4 days from sample arrival for this consumer product.
Request A Test	$99	$4 per-order service fee shown	$103	Two lab options are listed; one uses Labcorp test code 716910 and one uses Quest test code 5507.
Walk-In Lab	$99	$6 per-order physician fee shown	$105	Labcorp and Quest test codes are listed; turnaround is shown as about 6–7 days and may vary.
Personalabs	$166	Physician order is described as included on the provider’s site	$166	Personalabs describes Labcorp fulfillment and physician-reviewed results for its direct-order tests.
HealthLabs	$179	No separate mandatory fee was visible on the selenium product page	$179	Provider advertises more than 4,500 collection sites and most results in 1–3 business days.

How we compared prices

For this comparison, the practical price is the amount a consumer should expect to pay online before the blood draw, including mandatory provider-listed fees. We did not rank providers by advertising relationship, commission, or promotional language. We compared:

• Base test price for a selenium blood test or selenium serum/plasma test.
• Mandatory checkout fees shown on the product page, including physician, service, requisition, or lab collection fees.
• Collection network where visible, such as Labcorp or Quest Diagnostics.
• Ordering workflow such as online purchase, provider review, lab order generation, local blood draw, and online results.
• Availability caveats such as state restrictions, age restrictions, or lab-option differences.
• Public customer-satisfaction signals when useful, while recognizing that review sites are imperfect and may overrepresent unusually positive or negative experiences.

For customer experience, public review signals are mixed by provider. For example, Walk-In Lab’s Trustpilot profile shows a high aggregate score with many reviews, while HealthLabs’ Trustpilot profile shows a lower but still substantial review base. These ratings should not replace price and availability checks, because the most important experience factor for you may be the local collection site, not the online checkout brand.

What you get for the price

Most self-pay selenium testing services follow the same basic pathway: you buy the test online, an authorized clinician or provider network reviews and places the lab order if appropriate, you visit a local blood draw site, and you receive results in an online account. Labcorp OnDemand states that its selenium test is collected in person at a Labcorp location and that a healthcare provider reviews and approves test requests; its product page also lists blood as the sample type and says no special preparation is needed. Walk-In Lab and Request A Test similarly list test codes and local lab collection options for selenium testing.

The lab methodology matters more than the storefront. Labcorp’s professional test directory for Selenium, Serum or Plasma lists CPT code 84255 and methodology by inductively coupled plasma/mass spectrometry, a sensitive method used for trace element measurement. It also notes that the specimen should be collected and transferred using trace-element appropriate materials, such as a royal-blue top tube and metal-free transport tube. That collection detail is handled by the lab, but it explains why selenium testing can cost more than routine chemistry tests.

How to choose the best selenium test option

1. Match the specimen type your clinician wants

Do not assume every “selenium test” is identical. A provider may sell selenium serum/plasma, whole blood selenium, RBC selenium, urine selenium, or a broader micronutrient panel that includes selenium. Labcorp’s serum/plasma reference interval is for serum or plasma, not hair, nail, urine, or RBC testing. If a clinician asked for a specific lab code—such as Labcorp 716910 or Quest 5507—use that exact version when possible.

2. Compare total price, not headline price

A $44 listing can become $72 after mandatory fees, while a $99 listing can become $103 or $105 depending on the provider’s service or physician fee. Conversely, a provider with a higher visible base price may include the physician order and lab visit. The fair comparison is the final amount due before the blood draw, excluding optional coupons that may not be available to every shopper.

3. Check state and age restrictions before paying

Direct-access lab testing rules vary. Quest Health’s help center, for example, states that its lab tests are not currently available in Arizona, Hawaii, or Puerto Rico and that individual tests may have additional age, state, or sex restrictions. Many third-party Quest or Labcorp ordering services also restrict New York, New Jersey, and Rhode Island for some direct-order lab workflows. The safest approach is to enter your state and collection ZIP code before relying on a quoted price.

4. Prioritize collection convenience

A cheaper test is not cheaper if the nearest eligible collection site is far away, has limited appointment times, or requires rescheduling. If you have both Labcorp and Quest locations nearby, compare the same selenium specimen type across both networks. If only one network is convenient, that may narrow the choice.

5. Be cautious with broad panels

Selenium is sometimes bundled into thyroid, nutrient, heavy metal, or “micronutrient” panels. A panel can be cost-effective if you truly need several markers. But if your only question is selenium status, a broad panel can turn a $70–$110 purchase into several hundred dollars without adding useful information.

Preparation and sample details

For most serum or plasma selenium blood tests, fasting is not required. Labcorp OnDemand lists “no special preparation” for its consumer selenium test, and Request A Test lists no fasting for one of its lab options. However, some providers advise avoiding vitamins or mineral supplements for a short period before collection; Request A Test notes that for its Quest option, customers should refrain from taking vitamins or mineral supplements for at least three days before specimen collection.

Practical preparation tips:

• Ask before stopping prescribed supplements. If selenium is part of a clinician-directed treatment plan, do not stop it without guidance.
• Avoid unusually high-selenium foods right before testing if your clinician wants a baseline. Brazil nuts can contain very high selenium amounts, and intake can vary widely by nut and growing region.
• Bring the lab order and ID. Some collection sites require a printed requisition; others receive the order electronically.
• Hydrate normally. A standard blood draw is easier when you are well hydrated.
• Tell the ordering clinician about supplements, diet, kidney disease, gastrointestinal disease, and occupational exposure. These details can change interpretation.

How to interpret selenium blood test results

Interpretation depends on specimen type, units, and the lab’s reference interval. Labcorp’s serum/plasma selenium directory lists an adult reference interval of 93–198 µg/L for people older than 18, with separate pediatric ranges. A result reported in ng/mL may be numerically equivalent to µg/L, but always follow the units and reference range printed on your own report.

Low selenium

Low selenium can occur with very limited intake, malabsorption, long-term parenteral nutrition without adequate trace elements, dialysis, severe gastrointestinal disorders, or certain clinical contexts. MedlinePlus notes that selenium deficiency is rare in the United States but can occur in people receiving nutrition through an IV for long periods, and severe gastrointestinal disorders such as Crohn disease may affect absorption. Symptoms often attributed to low selenium—fatigue, weakness, hair changes, or immune concerns—are nonspecific and can have many other causes.

High selenium

High selenium may occur from supplements, frequent high-selenium foods, environmental exposure, occupational exposure, or unusual product contamination. The NIH describes chronic selenium excess, or selenosis, as commonly involving hair loss and nail brittleness or loss, with possible garlic breath odor, metallic taste, rash, nausea, diarrhea, fatigue, irritability, and nervous system abnormalities. The adult tolerable upper intake level for selenium is 400 micrograms per day from food and supplements, according to the NIH Office of Dietary Supplements.

Normal selenium

A normal result means the measured selenium level falls within that lab’s expected range for the specimen type. It does not prove that every selenium-dependent enzyme is functioning optimally, and it does not rule out unrelated causes of symptoms. The NIH notes that some functional biomarkers of selenium status can be affected by inflammation and oxidative stress, so selenium interpretation is not always as simple as “low equals deficiency” or “normal equals no issue.”

What to do after you receive results

• If your result is low: review your diet, supplement use, gastrointestinal history, kidney history, and medications with a qualified healthcare professional. Do not start high-dose selenium on your own; the safe range between enough and too much is narrower than for many nutrients.
• If your result is high: stop nonessential selenium supplements until you speak with a clinician, check multivitamin labels, consider high-selenium foods such as Brazil nuts, and discuss possible occupational or environmental exposures.
• If your result does not match your symptoms: ask whether a repeat test, different specimen type, or related tests such as thyroid, kidney, liver, inflammatory, zinc, copper, or nutritional markers are appropriate.
• If you have neurological symptoms, severe gastrointestinal symptoms, chest pain, shortness of breath, confusion, or suspected poisoning: seek urgent medical care rather than relying on a self-ordered lab result.

Ways to reduce selenium blood test cost

• Use one cart for multiple needed tests. Per-order fees may apply once per order, so combining clinician-recommended tests can reduce the average fee per marker.
• Compare the same specimen type. A serum/plasma selenium test should be compared with another serum/plasma selenium test, not with hair, nail, or broad panel testing.
• Check whether a promotion applies to the test itself or only to the base price. Some physician or service fees are not discountable.
• Ask your clinician whether insurance billing makes sense. If the test is medically necessary and properly ordered, insurance may reduce your cost; however, specialty tests can still create unexpected bills if the lab is out of network or the diagnosis code is not covered.
• Consider local hospital cash pricing only if transparent. Some hospitals publish self-pay lab prices, but the total can include facility or draw fees. Ask for the full cash-pay estimate in writing.

 

FAQs

How much does a selenium blood test cost without insurance?

Many direct-order selenium blood test options cost roughly $70–$110 after mandatory fees, though some providers list prices around $160–$180. The best comparison is the final cart total, including physician, service, requisition, and collection fees.

Is a selenium blood test covered by insurance?

It may be covered when ordered by a healthcare professional for a medically supported reason, but coverage varies by plan, diagnosis code, lab network, and medical-necessity rules. Self-ordered direct-access tests are usually paid out of pocket and may not be submitted to insurance.

Do I need a doctor’s order?

For most online self-pay services, you do not need to bring your own doctor’s order because the service arranges review by an authorized clinician or provider network. That is different from individualized medical care; you should still discuss abnormal or confusing results with your own healthcare professional.

Is fasting required for a selenium blood test?

Usually no. Most selenium blood test listings state no fasting requirement. Some providers advise avoiding vitamins or mineral supplements for 24 hours to three days before testing, especially if the goal is to measure baseline selenium status.

What is the normal range for selenium in blood?

Normal ranges vary by lab and specimen type. Labcorp lists an adult serum/plasma reference interval of 93–198 µg/L for its selenium serum/plasma test. Always use the reference interval printed on your own report.

Can Brazil nuts affect a selenium blood test?

Yes. Brazil nuts can contain high amounts of selenium, and eating them shortly before testing may raise levels in some people. If your clinician wants a baseline result, ask whether to avoid Brazil nuts and selenium-containing supplements before the draw.

Is high selenium dangerous?

Chronically high selenium intake can cause selenosis. The NIH describes possible signs such as hair loss, brittle or lost nails, garlic breath odor, metallic taste, nausea, diarrhea, fatigue, irritability, rash, and nervous system abnormalities. The adult upper intake level is 400 micrograms per day from food and supplements.

Which provider is best for a selenium blood test?

The best provider is the one with the lowest complete price for the correct specimen type, a convenient collection site, clear mandatory fees, and availability in your state. If your clinician specified Labcorp, Quest, or a particular test code, follow that requirement even if another storefront appears cheaper.

Educational note

This article is for general education and price comparison. It does not diagnose selenium deficiency, selenium toxicity, thyroid disease, or any other condition. Lab results should be interpreted with your health history, medications, supplement use, diet, symptoms, and clinician guidance.

Sources

• NIH Office of Dietary Supplements: Selenium Fact Sheet for Health Professionals
• MedlinePlus: Selenium in diet
• Labcorp Test Menu: Selenium, Serum or Plasma
• Labcorp OnDemand: Selenium Test
• Walk-In Lab: Selenium Blood Test
• Request A Test: Selenium Blood Test
• JustLabs: Selenium Blood Test
• HealthLabs: Selenium, Blood Test
• Personalabs: Nutrition and Vitamins Tests
• Quest Health Help Center