Summary
| Direction in PACVS | ↓ Reduced — lower than in the comparison group |
|---|---|
| Category | Metabolic |
| Also described as | Iron metabolism marker |
| Compared against | HC (healthy controls) |
| Associated symptoms | Impaired iron storage in >50% of PACVS subjects |
| Test type | Blood test (serum / plasma / whole blood) |
| LOINC code | 2276-4 |
| Source | Mundorf et al. 2024 — doi:10.3390/vaccines12070790 |
| Condition atlas | PACVS Biomarker Atlas |
Other conditions where Ferritin is reported
- Ferritin in Long COVID — ↕ inconsistent vs HC
- Ferritin in NAFLD / MASH (Metabolic-Associated Steatohepatitis) — ↑ elevated vs NAFLD vs normal/no iron overload
See the cross-condition hub: Ferritin across conditions.
Trials, interventions and tests
Commercial test availability
Ferritin — commercial laboratory test.
Links are for reference only; availability, specimen requirements and coverage vary by location.
Related Metabolic markers in PACVS
Full list: PACVS Biomarker Atlas.
Frequently asked questions
Is Ferritin index high or low in PACVS?
Reduced. Studies summarised in the OSMF atlas report lower Ferritin index in PACVS than in healthy controls. Source: Mundorf et al. 2024.
What symptoms is Ferritin index associated with in PACVS?
The cited literature associates this marker with Impaired iron storage in >50% of PACVS subjects. These are population-level associations and do not mean the marker causes the symptoms.
Which test measures Ferritin index?
It is measured as a blood test (serum / plasma / whole blood). The standard laboratory code is LOINC 2276-4. Commercial laboratories such as Quest Diagnostics, LabCorp, Ulta Lab Tests list an orderable assay.
Is one abnormal Ferritin index result diagnostic of PACVS?
No. No single biomarker is diagnostic of PACVS. Ferritin index findings come from group comparisons, overlap considerably between patients and controls, and vary with study design, timing and comparison group. A result should be interpreted by a clinician alongside symptoms, history and other tests.
Is Ferritin index specific to PACVS?
No. The same marker is also reported in Long COVID, NAFLD / MASH (Metabolic-Associated Steatohepatitis) in this atlas, so it reflects shared biology (for example inflammation or vascular stress) rather than a condition-specific signature.
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Last reviewed: 2026-06-30 · Page generated from pacvs.json · Browse: PACVS atlas · Biomarker Index · All marker pages
Disclaimer: This page is an educational synthesis of published, peer-reviewed research and is not medical advice. Biomarker findings vary across studies with case definitions, comparison groups, timing and assay methods. Direction of change reflects the predominant finding in the cited source and does not establish a diagnostic threshold. Discuss any test result with a qualified clinician.