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Quick take: what should you expect to pay?
The typical BUN blood test cost for a self-pay U.S. consumer is often about $31 to $52 for a standalone BUN order when mandatory draw, service, or physician-order fees are included. If you do not specifically need a BUN-only test, a basic metabolic panel (BMP), comprehensive metabolic panel (CMP), or renal function panel can be the better buy because BUN is usually interpreted with creatinine, estimated glomerular filtration rate (eGFR), electrolytes, and sometimes urine kidney markers.
A BUN test measures blood urea nitrogen, a nitrogen-containing waste product that forms when the body breaks down protein. The liver makes urea, the kidneys filter it, and the result can help evaluate kidney function in context. MedlinePlus notes that abnormal BUN results do not automatically mean a person has a condition needing treatment, because BUN can change with dehydration, protein intake, age, sex, medicines, liver function, and other factors. MedlinePlus: BUN blood test
Best value rule: If you are paying cash and only need BUN, compare the final checkout total. If you are checking kidney health, a BUN-only test is usually incomplete; compare panels that also include creatinine and eGFR.
On this page
- How we compared total cost
- BUN-only vs BMP, CMP, and renal panel
- What affects the price
- What your BUN result can and cannot tell you
- FAQs
Self-pay BUN blood test price comparison
The table below compares consumer-facing options that make BUN available either as a standalone test or inside a common chemistry panel. Prices can change, coupons can appear or disappear, and some services vary by ZIP code. The useful comparison is the effective total cost to the patient: the test price plus any required draw, physician-order, service, or lab-visit fee that a typical self-pay customer must pay to complete the order.
| Provider / route | What you get | Listed test price | Mandatory fees to check | Estimated effective cost | Collection / notes |
|---|---|---|---|---|---|
| Ulta Lab Tests | Standalone Urea Nitrogen (BUN), Quest test #294 | $17.95 | Standard draw fee commonly $12.95; higher premium draw fees may appear by location | About $30.90 at standard draw-fee locations | Blood draw at a selected patient service center. Ulta lists no preparation instructions for the BUN item and average processing of 1–2 business days. Ulta BUN listing Ulta FAQ on draw fees |
| Request A Test | Standalone BUN through Labcorp or Quest | $34 | $4 per-order service fee | About $38 | Order online, visit a participating lab, results typically around 1 business day; no fasting requirement listed for BUN. Request A Test BUN |
| Walk-In Lab | Standalone Urea Nitrogen (BUN) Serum Test | $34 | Provider states no further payment is required at the lab for standard lab orders; site materials also reference per-order physician fees, so confirm final checkout total | About $34–$40 depending on checkout fee display | Blood specimen; no special preparation; results often 1–2 days. Walk-In Lab BUN Walk-In Lab FAQ |
| HealthLabs.com | BUN/Creatinine Ratio test | $39 | Provider states the listed price is the price paid, with no hidden fees | About $39 | Not a BUN-only order; includes BUN with creatinine context, which is often more clinically useful. HealthLabs BUN/Creatinine Ratio HealthLabs no-hidden-fee statement |
| Personalabs | Blood Urea Nitrogen (BUN) Test | $52 | Provider states price includes the lab test, doctor order, lab visit, and medical-director review, with no hidden draw or doctor fee | About $52 | Availability and collection network should be verified at checkout. Personalabs BUN listing Personalabs payment FAQ |
| Labcorp OnDemand | CMP that includes BUN, creatinine, BUN/creatinine ratio, eGFR, electrolytes, glucose, liver markers, and proteins | $49 | No separate mandatory physician fee shown on the CMP page | About $49 | Not BUN-only; collection in person at a Labcorp location; 12-hour fast required for the CMP. Labcorp OnDemand CMP |
| Quest Health | CMP that includes BUN and 13 other components | $49 | $6 physician service fee for in-person Quest lab tests | About $55 | Blood draw is included in the purchase; no separate printout usually needed after registration. Quest Health CMP Quest physician service fee Quest help center |
Bottom line: the cheapest BUN-only route is not always the best clinical route. If your purpose is kidney screening, medication monitoring, dehydration evaluation, or follow-up of a prior abnormal kidney marker, BUN without creatinine and eGFR may leave you with a number that is difficult to interpret.
How we compared total cost
For this cost comparison, we treated the consumer’s real price as the amount needed to complete testing, not just the large number shown beside the test name. That means we included required draw fees, service fees, and physician-order fees when the provider disclosed them. We did not treat optional coupons, first-order discounts, subscription discounts, or bundled promotions as the baseline price because they can change and may not apply to every reader.
We also separated BUN-only products from panels that include BUN. A CMP priced at $49 is not cheaper than a $31 BUN-only test if all you need is BUN. But it may be a stronger value if you also need creatinine, eGFR, glucose, electrolytes, calcium, albumin, and liver enzymes. Labcorp’s CMP page, for example, lists BUN, creatinine, BUN/creatinine ratio, eGFR, sodium, potassium, glucose, calcium, protein, albumin, and liver enzymes among included components. Labcorp OnDemand CMP
Availability is another cost factor. Some online lab services do not serve every state or every lab network. Quest Health publishes a state-availability FAQ, and several third-party lab-ordering services restrict ordering for consumers who list addresses in states such as New York, New Jersey, or Rhode Island. New York’s Wadsworth Center explains that direct access testing in New York is limited to specific circumstances, including tests with FDA-approved over-the-counter collection devices or tests for the same purpose. Quest Health state availability FAQ New York State direct access testing guidance
Should you buy BUN by itself or in a panel?
A standalone BUN test makes sense when a clinician specifically asked for BUN alone, when you are repeating one value after a recent panel, or when you are matching a prior order exactly. It is quick, low-cost, and usually does not require fasting. But for most kidney-health questions, BUN is only one piece of the picture.
The National Kidney Foundation explains that clinicians typically compare BUN with creatinine and eGFR when evaluating kidney health. It also highlights urine albumin-creatinine ratio (uACR) as a key test for kidney damage, because protein leaking into urine can be an early sign of kidney disease even when blood markers look acceptable. National Kidney Foundation: tests to check kidney health
BUN-only test
Best for: repeating a specific BUN result, following a clinician’s narrow instruction, or keeping cost as low as possible when no other markers are needed.
Limit: BUN alone cannot tell whether an abnormal value is from reduced kidney filtration, dehydration, high protein intake, gastrointestinal bleeding, medication effects, liver disease, or another cause.
Basic metabolic panel (BMP)
Best for: kidney function plus electrolytes and glucose. A BMP commonly includes BUN, creatinine, glucose, calcium, sodium, potassium, chloride, and carbon dioxide/bicarbonate. It is often a practical middle ground if your main question is kidney function, hydration/electrolytes, or basic metabolic status.
Comprehensive metabolic panel (CMP)
Best for: a broader routine chemistry screen. A CMP generally includes the BMP-type kidney and electrolyte markers plus liver-related markers and proteins. Quest Health describes its CMP as a 14-component blood test that includes BUN, creatinine, sodium, potassium, carbon dioxide, chloride, albumin, total protein, glucose, calcium, bilirubin, ALP, ALT, and AST. Quest Health CMP
Renal function panel or kidney profile
Best for: kidney-focused monitoring, especially when phosphorus, albumin, creatinine, eGFR, and electrolytes are relevant. Some expanded kidney profiles add urine albumin or cystatin C, which can be useful in selected situations but may cost more.
What affects BUN blood test cost?
1. Whether the price includes the blood draw
Some providers include collection in the listed price. Others add a required draw fee at checkout. This is the most common reason a $17.95 test becomes a roughly $31 test. Ulta Lab Tests, for example, discloses a standard draw fee and says higher draw fees may be shown when choosing a patient service center. Ulta Lab Tests FAQ
2. Whether a clinician order is bundled into the purchase
Consumer-initiated testing often still requires an authorized ordering clinician behind the scenes. Some companies bundle this into the test price; others list a separate physician service or per-order fee. Quest Health states that a physician service fee is collected for in-person lab tests to support independent provider oversight, ordering if appropriate, and follow-up services. Quest physician service fee FAQ
3. Lab network and location
Most national self-pay services route collection through major lab networks such as Quest Diagnostics or Labcorp, but the available network can vary by provider and ZIP code. A low price is only useful if there is a convenient collection site near you and your state is eligible for that order.
4. Standalone test versus panel
Panel pricing can look surprising: a CMP may cost only a little more than a standalone BUN, or sometimes less than a standalone BUN through another provider. That does not mean every panel is necessary. It means lab marketplaces negotiate and bundle differently. If you need multiple markers, compare the panel’s total cost against adding tests one by one.
5. Insurance versus self-pay
Self-pay online lab orders are usually paid upfront and not billed to insurance. If your own clinician orders BUN because of symptoms, medication monitoring, kidney disease, high blood pressure, diabetes, or another medical indication, your insurance may cover some or all of the lab cost. However, you may still owe deductible, coinsurance, or out-of-network charges. If using insurance, ask where your plan prefers you to be drawn and whether the ordering clinician’s diagnosis supports coverage.
How the BUN blood test is collected and how to prepare
BUN is measured from a blood sample, usually drawn from a vein in the arm. The collection itself often takes only a few minutes, although wait time depends on the patient service center. For a BUN-only test, MedlinePlus says special preparation is usually not needed, but fasting may be required if other tests are ordered on the same blood sample. MedlinePlus: BUN preparation
Before your appointment, read the exact instructions from the ordering website. If you bought a CMP from Labcorp OnDemand, the page instructs a 12-hour fast. Quest and other services may give fasting directions for panels that include glucose. Water is usually allowed and can make the blood draw easier, but follow the order instructions if they differ.
- Bring identification and any requisition or confirmation number the provider tells you to bring.
- Do not stop prescribed medicines just to change a BUN result unless your clinician specifically tells you to do so.
- Keep your diet typical unless instructed otherwise. A very high-protein meal or unusually low intake before testing can affect interpretation.
- Ask about timing if you are monitoring a medication, kidney disease, dialysis, dehydration, or a recent illness.
What your BUN result can and cannot tell you
A high BUN can occur when the kidneys are not filtering waste normally, but it can also occur with dehydration, reduced blood flow to the kidneys, high protein intake, gastrointestinal bleeding, burns, heart failure, certain medicines, or catabolic stress. A low BUN can occur with low protein intake, overhydration, pregnancy, or reduced urea production in some liver conditions. MedlinePlus emphasizes that BUN levels vary and abnormal results do not automatically mean a medical condition requiring treatment. MedlinePlus: BUN results
This is why BUN is often interpreted with creatinine. Creatinine is another waste product filtered by the kidneys, and eGFR is calculated from creatinine along with demographic factors to estimate filtration. A BUN/creatinine ratio can sometimes help distinguish dehydration or reduced kidney blood flow from other patterns, but it is not diagnostic by itself.
Seek prompt medical guidance if an abnormal BUN result comes with symptoms such as markedly decreased urination, confusion, severe weakness, shortness of breath, chest pain, swelling, persistent vomiting, black or bloody stools, or severe dehydration. Online lab testing is not a substitute for urgent care.
How to choose a provider without overpaying
Start with your purpose. If you need a one-time BUN repeat, choose the lowest reliable all-in standalone option available in your state and near your collection site. If you are checking kidney function, compare BMP, CMP, BUN/creatinine ratio, and renal-panel prices. If you are monitoring known kidney disease, diabetes, high blood pressure, or a medication that can affect kidney function, ask your clinician which markers are needed and how soon results should be reviewed.
Then check four practical details before paying:
- Final checkout total: confirm draw, service, physician, and lab-visit fees.
- Collection network: make sure the selected Labcorp, Quest, or partner site is accessible and accepts that order type.
- State and age rules: consumer-initiated testing may be limited by state, age, and test type.
- Result support: know whether the company provides clinician follow-up for critical results, routine interpretation support, or only a downloadable report.
Customer satisfaction and reliability signals
Price should not be the only factor. Public review patterns can reveal friction points such as confusing fees, difficulty accessing results, cancellation problems, or customer-service delays. Ulta Lab Tests is listed by the Better Business Bureau as accredited with an A+ rating, while its BBB customer-review sample is small and mixed; Trustpilot shows a larger review set with generally favorable ratings. BBB: Ulta Lab Tests profile Trustpilot: Ulta Lab Tests reviews
HealthLabs.com has a large Trustpilot review volume with generally positive but not perfect ratings, and the provider states that the price shown is the price paid with no hidden fees. Walk-In Lab publishes its own review page and states that standard online lab orders do not require further payment at the lab, while checkout should still be checked for any order-specific physician fee. Trustpilot: HealthLabs.com reviews HealthLabs.com pricing statement Walk-In Lab reviews Walk-In Lab FAQ
Use reviews as a practical signal, not as proof of medical quality. The actual testing is typically performed by a clinical laboratory network, while the ordering website handles shopping, payment, requisitions, and result delivery. A low-cost provider can be a good fit when fees are clear, the collection site is convenient, and you understand what follow-up is included.
Practical next steps after you get your BUN result
If your BUN is within the reference range and you feel well, save the report for your records and compare it with prior results if available. If it is mildly high or low, do not assume the cause. Review hydration, recent illness, diet changes, supplements, and medicines, then consider whether creatinine, eGFR, electrolytes, urinalysis, or uACR are available from the same draw or need to be ordered.
If your result is clearly abnormal, worsening from prior testing, or paired with abnormal creatinine/eGFR, contact a healthcare professional. Kidney-related results are safest to interpret with your medical history, blood pressure, medications, urine findings, and symptoms. The American Kidney Fund similarly notes that clinicians compare BUN with creatinine and eGFR to decide next steps. American Kidney Fund: BUN test
FAQs about BUN blood test cost
How much is a BUN blood test without insurance?
A standalone self-pay BUN test commonly falls around $31–$52 after mandatory fees, based on current consumer-facing listings. Panels that include BUN may cost about $39–$55 or more depending on the provider and included markers.
Why is the advertised price different from the final price?
The advertised price may show only the lab test. The final price can include a blood draw fee, physician-order fee, service fee, or lab-visit fee. Always check the cart total before paying.
Is BUN included in a CMP?
Yes. A comprehensive metabolic panel typically includes BUN along with creatinine, eGFR or kidney-related calculations, electrolytes, glucose, calcium, proteins, and liver enzymes. Both Quest Health and Labcorp OnDemand list BUN as a CMP component.
Is a BUN test the same as a kidney function test?
No. BUN is one kidney-related marker, but kidney function is usually assessed with creatinine and eGFR, and kidney damage may be assessed with urine albumin-creatinine ratio. BUN by itself is limited.
Do I need a doctor’s order?
Many online lab providers include clinician authorization as part of the purchase, so you do not need to bring an order from your personal doctor. State rules and provider policies vary, and some states restrict direct access testing.
Can I use HSA or FSA funds?
Many providers accept HSA or FSA cards, but eligibility depends on your plan and the reason for testing. Keep the receipt and check with your benefits administrator if you plan to seek reimbursement.
How fast do BUN results come back?
Many providers estimate about 1–2 business days after the sample reaches the lab, but turnaround is not guaranteed. Weather, holidays, sample issues, repeat testing, or lab delays can extend the timeline.
Should I buy the cheapest BUN test?
Choose the cheapest all-in option only if it gives you the right test, a convenient collection site, clear fees, and a result format you can use. If your goal is kidney assessment rather than a BUN-only repeat, a panel may be a better value.
Educational note
This article is for general education and cost comparison. It does not diagnose disease, determine medical necessity, or replace care from a licensed healthcare professional. Lab prices, fees, availability, and state restrictions can change; confirm your final checkout total and collection-site eligibility before purchasing.
Sources
- MedlinePlus — BUN (Blood Urea Nitrogen)
- National Kidney Foundation — Tests to Check Your Kidney Health
- American Kidney Fund — Blood Urea Nitrogen Test
- Ulta Lab Tests — Urea Nitrogen Test
- Request A Test — Blood Urea Nitrogen Test
- Walk-In Lab — Urea Nitrogen Serum Test
- HealthLabs.com — BUN/Creatinine Ratio Test
- Labcorp OnDemand — Comprehensive Metabolic Panel
- Quest Health — Comprehensive Metabolic Panel
