MetabolicMarkers

Educational content only, not medical advice. We are not a medical provider; review your results with a licensed physician. Details

Current promotion

Blood Tests for Unexplained Fatigue, Joint Pain & Body Aches

When symptoms have no clear cause, inflammatory markers give you and your doctor somewhere to start.

Affiliate disclosure: we earn a commission when you purchase lab tests through links on this site, at no extra cost to you. Learn more

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Panels from $119.16 with the 20% promotion (regularly $148.95); the 25-test Inflammation Panel Complete is $531.96 (regularly $664.95). Promotional pricing at time of writing.

At a glance

Persistent fatigue, recurring joint pain, body aches, digestive discomfort, skin flare-ups, and low-grade fevers can all accompany chronic, low-grade inflammation. Inflammation blood panels measure the markers that rise when the immune system stays activated, giving people with lingering, unexplained symptoms objective numbers to review with their doctor. This partner offer includes three panel tiers, from a focused 6-test screen to a 25-test, 121-biomarker workup.

Best suited for

  • People with persistent fatigue that is not relieved by rest
  • Anyone with recurring joint pain, stiffness, or frequent body and muscle aches without an apparent cause
  • People with unexplained gastrointestinal discomfort or changes in bowel habits
  • Anyone with ongoing skin problems such as rashes or eczema, or a persistent low-grade fever
  • People who want objective lab data to bring to a doctor's visit about lingering symptoms

What's included

Inflammation Lab Panel

6 tests, 6 biomarkers; blood specimen

Inflammation Panel with TPO

7 tests, 7 biomarkers; blood specimen

Inflammation Panel Complete

25 tests, 121 biomarkers; blood and urine specimens

Deep-dive the key markers: hs-CRP, Ferritin

Key biomarker ranges

Commonly used adult reference ranges for markers this panel measures, labs vary, so always interpret results against your lab's stated ranges and with your doctor.

hs-CRP (mg/L)

Commonly used cutoffs: under 1 mg/L low, 1–3 mg/L average, over 3 mg/L high; acute illness or injury can spike results, so retesting confirms a trend.

hs-CRP reference ranges (mg/L)
ZoneRange
Low01 mg/L
Average13 mg/L
High310 mg/L
Ferritin (ng/mL)

Commonly used reference ranges differ by sex, roughly 30–200 ng/mL is typical, with men’s upper bounds higher; inflammation can raise ferritin and mask low iron.

Ferritin reference ranges (ng/mL)
ZoneRange
Low030 ng/mL
Typical range30200 ng/mL
Elevated200400 ng/mL

The importance of testing

When symptoms drag on without an obvious explanation, tiredness that rest does not fix, joints that ache or stiffen for no apparent reason, recurring muscle pain, digestive changes, rashes or eczema, or a low-grade fever that keeps returning, it is hard to know where to start. Lab testing turns vague symptoms into concrete data points: an inflammation panel measures markers that are often elevated when the immune system stays persistently activated.

Elevated inflammatory markers are associated with a range of conditions, from cardiovascular and autoimmune activity to infections and metabolic strain. A panel does not tell you which of these applies to you, but it narrows the conversation: normal markers point in one direction, elevated ones flag results your doctor will likely want to investigate further.

The promotion covers three tiers. The core Inflammation Lab Panel measures 6 biomarkers from a blood draw; the Inflammation Panel with TPO adds thyroid peroxidase antibodies, a marker associated with autoimmune thyroid activity; and the Inflammation Panel Complete spans 25 tests and 121 biomarkers across blood and urine. Results for most tests are reported within 24 to 48 hours through a secure, private portal.

Testing is a starting point, not an endpoint. Bring your results, normal or not, to your healthcare provider, who can interpret them alongside your symptoms, history, and any other workup you may need.

Promo code

ULTAC488

Save 20% with code ULTAC488, current promotion; confirm final pricing on the partner page.

Ready to get your numbers? Order online, visit a nearby draw site, and receive private results to review with your doctor.

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Frequently asked questions

Can a blood test help explain fatigue and joint pain?

It can help narrow the search: inflammation panels measure markers that are often elevated when persistent symptoms have an inflammatory component. The results do not identify a specific cause on their own, but they give your doctor objective data to pair with your symptoms and history when deciding what to investigate next.

Which symptoms are associated with chronic inflammation?

Commonly cited signs include persistent fatigue not relieved by rest, recurring joint pain or stiffness without apparent cause, frequent body aches and muscle pain, unexplained gastrointestinal discomfort or changes in bowel habits, skin problems such as rashes or eczema, and a persistent low-grade fever. Chronic inflammation can also be present with no noticeable symptoms at all, which is why some people test proactively.

Do I need a doctor's referral to get these blood tests?

No, the panels are ordered directly online through the partner's site, with no doctor's appointment required first. You select a panel, complete the sample collection at a nearby partner lab, and receive results in a secure, private portal, typically within 24 to 48 hours for most tests, ready to share with your own provider.

What if my inflammatory markers come back normal?

Normal markers are useful information too: they make an active inflammatory process less likely and help your doctor look elsewhere for an explanation of your symptoms. Keep the results as a baseline, if symptoms persist, your provider may recommend repeat testing or a different workup.

Can I order these tests in every US state?

No. Direct-to-consumer lab testing is restricted or prohibited in New York, New Jersey, and Rhode Island, so residents of those states may be blocked at the partner's checkout. Residents of other US states can generally order online and test at a nearby lab location.