Advanced Inflammation

A focused inflammation panel covering the markers that matter most for cardiovascular and systemic inflammation: high-sensitivity CRP, ESR, fibrinogen, homocysteine, ferritin, and uric acid.

What's included

Who it's for

At a glance

The Advanced Inflammation panel is a blood test that measures six markers tied to inflammatory activity, hs-CRP, ESR, fibrinogen, homocysteine, ferritin and uric acid. It suits adults who want to see whether low-grade inflammation is present, follow it over time, or add context to cardiovascular, metabolic, joint or recovery questions they are already tracking.

This page is health education and not medical advice. Results are interpreted in the context of your history by a clinician.

What does the Advanced Inflammation panel measure?

It measures six inflammation markers from one blood draw, each reflecting a different part of the inflammatory response.

Group Markers What they show
Inflammation hs-CRP A protein made by the liver that rises with inflammatory signalling, measured by a high-sensitivity method so small changes are visible
Inflammation ESR How quickly red cells settle in a tube, a slower and broader signal of ongoing inflammatory activity
Inflammation Fibrinogen A clotting protein that also behaves as an acute phase reactant, linking inflammation with blood viscosity
Inflammation Homocysteine An amino acid handled by B vitamin dependent pathways, studied for its relationship with blood vessel lining health
Inflammation Ferritin The body's iron storage protein, which also rises as an acute phase reactant during inflammation
Inflammation Uric Acid A product of purine breakdown, associated with joint and metabolic patterns when it sits in the upper range

No marker here names a condition on its own. Each one adds a line to the same picture.

Why test these markers together?

They are tested together because each one answers a question the others leave open. hs-CRP moves quickly, often within a day or two of an infection, an injury or a hard training block, so a single raised value can reflect something temporary. ESR moves slowly, so it helps separate a short spike from activity that has been running for weeks. When hs-CRP and ESR disagree, the gap itself is informative.

Fibrinogen adds the clotting side of the story. It behaves as an acute phase reactant and influences how blood flows, which is why clinicians often read it alongside the other two rather than alone.

Homocysteine comes from a different pathway. Rather than reporting on the acute phase response, it reflects how well the body is processing an amino acid through folate, B12 and B6 dependent routes. Research suggests raised homocysteine is associated with impaired function of the endothelium, the single cell layer lining blood vessels 12. Studies have also examined its relationship with blood pressure patterns 3 and with clotting tendency 4, and reviews have tracked the ongoing question of how useful it is as a prevention target rather than only a marker 5.

Ferritin is the marker most often misread. Because it stores iron and also rises with inflammation, a high ferritin can mean iron loading, inflammatory activity, or both, which is exactly why reading it next to hs-CRP and ESR matters. Uric acid rounds out the metabolic angle, since purine handling, kidney clearance and body composition all influence where it sits.

You can read each marker in more depth on its own page, C-Reactive Protein, ESR, Fibrinogen Activity, Homocysteine, Ferritin and Uric Acid.

Who might consider this panel?

It tends to suit adults who already have a reason to look, rather than anyone testing at random. That includes people with a family history of cardiovascular or metabolic conditions who want more detail than a standard cholesterol check, people in their forties and beyond who are building a long-term baseline, and athletes who want to see whether training load and recovery are showing up in their bloodwork.

Some people come to it with symptoms they want to investigate, such as persistent joint aches, stubborn fatigue, slow recovery between sessions, or unexplained changes in exercise tolerance. Others are following something already identified, for example a previously raised hs-CRP or a ferritin result that was never fully explained. In people with known inflammatory or autoimmune conditions, these markers are often followed over time by the treating clinician.

Nothing here means you need this test. It is one way to replace guesswork with measurement, and whether it is the right measurement for you is a conversation worth having with a licensed provider.

How does testing work?

You order online, and the lab requisition is emailed to you. You take it to a Quest or partner lab location, and these are available nationwide, for a standard venous blood draw that takes a few minutes. No fasting is required for this panel.

Results are returned in 5-7 business days. Atlas, FitScript's AI health advisor, reads every marker against optimal ranges rather than only flagging what falls outside the standard laboratory range, so a value sitting quietly inside the reference interval but drifting year over year is still surfaced. Add-on panels can be run from the same sample, which avoids a second visit when you want a wider view.

How should you prepare?

Preparation is light, because this panel does not require fasting. Drink water normally in the hours before your draw, since being well hydrated makes the venipuncture easier and helps avoid a sample that needs repeating.

Timing matters more than diet. Acute illness, a recent infection, a dental procedure, a recent injury or a very hard training session can all raise inflammatory markers temporarily, so testing during or just after one of those events tends to produce a number that reflects the event rather than your baseline. If you can, book the draw on a normal week.

Supplements deserve attention too. High dose biotin, often taken for hair, skin and nails, can interfere with certain immunoassay based laboratory tests and shift results in either direction, so tell the lab and your clinician what you take. B vitamin supplements influence homocysteine, and iron supplements influence ferritin, which is worth noting rather than hiding. Keep taking any prescribed medication as directed unless your own clinician tells you otherwise, and simply note what you are taking so results can be read correctly.

How do you read the results?

Read each value in two layers, the standard laboratory reference range and the optimal range. A reference range describes where most results from a reference population fall. An optimal range is narrower and describes where a marker tends to sit in people with favourable long-term patterns, which is why it functions as an optimization target rather than a diagnostic cut-off.

The table below gives typical adult laboratory reference ranges. These vary by laboratory, assay, age and sex, so always compare your result with the range printed on your own report.

Marker Typical lab reference range (units)
hs-CRP Commonly banded as under 1.0 mg/L, 1.0 to 3.0 mg/L and above 3.0 mg/L
ESR Often reported up to roughly 20 mm/hr, with higher values accepted at older ages
Fibrinogen Roughly 200 to 400 mg/dL
Homocysteine Roughly 5 to 15 µmol/L
Ferritin Roughly 20 to 300 ng/mL, with different cut points for men and women
Uric acid Roughly 2.5 to 7.0 mg/dL, with different cut points for men and women

The useful habit is observation, then meaning, then next step. The observation is the number itself. The meaning is hedged, a raised hs-CRP with a raised ESR may reflect ongoing inflammatory activity, while a raised hs-CRP with a normal ESR more often reflects something recent. The next step is a conversation with a clinician, who can decide whether to repeat the test, add others, or look elsewhere.

One result is a snapshot. Retesting after a reasonable interval, commonly a few months when something is being actively changed and annually when you are tracking a baseline, tells you far more than a single draw. Markedly abnormal results, or results with symptoms attached, are worth discussing with a clinician promptly rather than waiting for the next test. A suboptimal value is information, not a verdict.

What can this panel not tell you?

It cannot tell you where inflammation is coming from, or whether a disease is present. These are general markers. They can show that an inflammatory process is likely active somewhere, but they do not localise it, and none of them diagnoses anything on its own.

The panel also has blind spots. It does not include autoantibody testing, thyroid markers, a complete blood count or kidney function, all of which can change how an inflammation result should be read. Imaging, specialist referral or further bloodwork may be needed. Research into inflammatory markers continues to evolve, including work examining how CRP related pathways relate to cognitive decline 6 and how homocysteine metabolites relate to vascular disease 7. Biology also varies by sex and life stage, and studies indicate that hormonal status influences homocysteine levels 8. Association is not causation, and a marker that tracks with risk at a population level does not predict an individual outcome.

How does it compare with other FitScript panels?

It sits between a general baseline and a focused immune workup. The Autoimmune & Inflammation panel goes further into immune system specific testing, which suits people investigating a suspected autoimmune process with their clinician. The FitScript Essential panel is broader and shallower, covering core systems for someone starting from scratch rather than drilling into one area.

The Advanced Inflammation panel is the narrow-and-deep option for inflammatory and vascular markers specifically. Because add-on panels run from the same sample, combining is practical when a wider view is what you are after. FitScript membership covers 150+ biomarkers tested per year for people who want continuous tracking rather than one-off testing.

How much does the Advanced Inflammation panel cost?

The Advanced Inflammation panel costs $149. It is HSA/FSA eligible, so it can usually be paid for with those funds.

Key takeaways

Six markers, one draw, no fasting. hs-CRP and ESR read together separate recent events from longer running activity, fibrinogen adds the clotting dimension, ferritin needs inflammatory context before it can be read as an iron result, and homocysteine and uric acid bring in metabolic pathways that the acute phase markers miss. Prepare by testing on a normal week, stay hydrated, keep taking prescribed medication unless your clinician advises otherwise, and disclose supplements such as biotin. Compare each result with both the standard reference range and the optimal range, retest rather than over-reading one snapshot, and take every result, especially an abnormal one, to a licensed clinician who can interpret it alongside your history and examination.

References

  1. Homocysteine and Hyperhomocysteinaemia. Current Medicinal Chemistry, 2019.
  2. Homocysteine-Induced Endothelial Dysfunction. Annals of Nutrition & Metabolism, 2015.
  3. Homocysteine, hyperhomocysteinemia, and H-type hypertension. European Journal of Preventive Cardiology, 2024.
  4. Homocysteine-induced thrombosis. British Journal of Biomedical Science, 2004.
  5. Homocysteine - from disease biomarker to disease prevention. Journal of Internal Medicine, 2021.
  6. C-reactive protein-mediated dementia. Psychogeriatrics, 2025.
  7. Homocysteine Metabolites, Endothelial Dysfunction, and Cardiovascular Disease. International Journal of Molecular Sciences, 2025.
  8. Estrogen and homocysteine. Cardiovascular Research, 2002.

Common questions

What's the difference between hs-CRP and regular CRP?

Regular CRP detects acute inflammation (infections, injuries) at levels above 10 mg/L. High-sensitivity CRP (hs-CRP) measures much lower levels, under 3 mg/L, that indicate chronic, low-grade inflammation linked to cardiovascular disease, metabolic dysfunction, and accelerated aging. Optimal is under 0.5 mg/L.

What do IL-6 and TNF-alpha tell me that CRP doesn't?

CRP is produced by the liver in response to inflammation, it tells you inflammation exists. IL-6 and TNF-alpha are the cytokines that drive the inflammation. They're upstream of CRP and can identify inflammatory activity before CRP rises. They also help distinguish between different types of inflammatory processes.

Why are complement C3 and C4 included?

Complement proteins are part of your innate immune system. Low levels suggest consumption (active autoimmune disease). Elevated levels indicate chronic inflammation. Combined with other markers, they help distinguish between autoimmune-driven vs metabolic-driven inflammation.

What is a chronic inflammation test?

A chronic inflammation test is bloodwork that measures markers rising with sustained inflammatory activity, such as hs-CRP, ESR, fibrinogen and ferritin. It shows whether an inflammatory process is likely active, not where it is or what is causing it. A clinician interprets the pattern alongside your symptoms and history.

What does a CRP blood test measure?

A CRP blood test measures C-reactive protein, made by the liver in response to inflammatory signalling. The high-sensitivity version, hs-CRP, detects smaller changes and is often used when looking at low-grade inflammation. Values rise quickly with infection, injury or hard training, so timing of the draw matters.

What blood test shows inflammation?

No single blood test shows inflammation definitively, but hs-CRP, ESR, fibrinogen and ferritin are the markers most commonly used together. hs-CRP reflects recent inflammatory signalling, ESR reflects slower ongoing activity, fibrinogen links inflammation with clotting, and ferritin rises as an acute phase reactant as well as storing iron.

Do I need to fast before this panel?

No fasting is required for the Advanced Inflammation panel. You can eat and drink normally beforehand, and staying hydrated makes the blood draw easier. Keep taking prescribed medication as directed unless your own clinician advises otherwise, and tell the lab about supplements, particularly high dose biotin.

Can a high result mean I have a disease?

No. A raised inflammatory marker shows that something is driving an inflammatory response, which could be a recent infection, an injury, intense exercise, or a longer running process. These markers do not identify a cause or location. Any result outside the expected range is worth discussing with a clinician.

Why is ferritin included in an inflammation panel?

Ferritin has two roles. It stores iron, and it also rises as an acute phase reactant during inflammation. That means a high ferritin can reflect iron loading, inflammatory activity, or both. Reading it next to hs-CRP and ESR helps a clinician work out which explanation fits better.

How often should inflammation markers be retested?

One result is a snapshot, so retesting is what makes the data useful. Many people retest after a few months when something is actively being changed, and annually when simply tracking a baseline. Your clinician decides the right interval based on your results, symptoms and overall history.

How long do results take and how are they explained?

Results are returned in 5-7 business days after your draw at a Quest or partner lab location. Atlas, FitScript's AI health advisor, reads every marker against optimal ranges as well as standard reference ranges. Interpretation and any decisions about care remain with a licensed clinician.