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MedicalVideos.com — Lab Values
Inflammation & Immune Markers reference sheet. Typical adult ranges; ranges vary by laboratory — always compare a result with the range on the patient’s own report.
Inflammation & Immune Markers reference sheet. Typical adult ranges; ranges vary by laboratory — always compare a result with the range on the patient’s own report.
Inflammation & Immune Markers — Reference Ranges
These markers rise or change when there is inflammation or immune activity somewhere in the body. They are sensitive but not specific: an abnormal result says inflammation is likely present, not where it is or what is causing it.
This page lists all 10 tests in this group with their typical adult ranges in both unit systems. Open any test for plain-language notes on high and low results and how to prepare.
| Test | Abbr. | Typical range (conventional) | Typical range (SI) |
|---|---|---|---|
| Anti-Cyclic Citrullinated Peptide Antibodies | Anti-CCP | <20 U/mL | <20 U/mL |
| Antinuclear Antibodies | ANA | Negative | — |
| C-Reactive Protein | CRP | <0.3 mg/dL | <3 mg/L |
| Complement C3 | C3 | 90–180 mg/dL | 0.90–1.80 g/L |
| Complement C4 | C4 | 10–40 mg/dL | 0.10–0.40 g/L |
| Erythrocyte Sedimentation Rate | ESR | Male <15; Female <20 mm/hr | Male <15; Female <20 mm/hr |
| Interleukin-6 | IL-6 | <7 pg/mL | <7 pg/mL |
| Procalcitonin | PCT | <0.1 ng/mL | <0.1 ng/mL |
| Rheumatoid Factor | RF | <14 IU/mL | <14 IU/mL |
| Total Complement Activity | CH50 | 41–95 U/mL | 41–95 U/mL |
Full, always-updated version of this sheet: https://www.medicalvideos.com/lab-values/panel/inflammation/Printed from MedicalVideos.com Lab Values. Educational reference only — not medical advice.
Please note: Reference ranges vary between laboratories, and between the methods and instruments they use — the range printed on your own report is the one your result should be compared with. A result outside the range is not by itself a diagnosis, and a result inside it does not rule out illness. These pages are an educational summary, not medical advice: always discuss your results with the clinician who ordered them, who can interpret them in the context of your health and history.