🩺 INTERCHEST Rule (Primary-Care Chest Pain)
UseWhen to use: ambulatory chest pain without acute ACS features.
Strata≤1 low probability; ≥2 not low — arrange further evaluation.
LimitsWhen not to use: ED ACS pathways. · Pitfall: applying after ischemic ECG. · Not a sole stress-test cancel.
SourceINTERCHEST rule (primary-care chest pain)
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
Paste the link in Slack, Teams, X, or LinkedIn — the preview image comes from this page’s Open Graph card.
Methodology · worked example, guidelines & full notes
Five plus / one minus.
When to use
When to use: ambulatory chest pain without acute ACS features.
How it works
+1 male≥55, known CAD, effort pain, pressure quality, physician concern; −1 if palpation reproduces pain.
Key points
- Five plus / one minus.
- Cut ≤1.
- Next: primary-care workup.
References
- INTERCHEST rule (primary-care chest pain)
Worked calculation
The values below come from this tool's own example placeholders and are computed server-side with the formula shown on this page, so the arithmetic can be checked quickly. It demonstrates how to substitute values only — it is not clinical advice and not a real case.
| Male sex and age ≥55 y | No (0) |
|---|---|
| Known coronary artery disease | No (0) |
| Pain related to effort | No (0) |
| Pain feels like pressure | No (0) |
| Physician initially suspected serious disease | No (0) |
| Pain reproducible by chest-wall palpation | No (0) |
→INTERCHEST0pts
- Cue：≤1 — low CAD probability in primary-care derivation
| Male sex and age ≥55 y | Yes (+1) |
|---|---|
| Known coronary artery disease | Yes (+1) |
| Pain related to effort | Yes (+1) |
| Pain feels like pressure | Yes (+1) |
| Physician initially suspected serious disease | Yes (+1) |
| Pain reproducible by chest-wall palpation | Yes (−1) |
→INTERCHEST4pts
- Cue：≥2 — not low risk; arrange further evaluation
Verification & sources · governance
FAQ
Frequently asked questions
- Does INTERCHEST Rule (Primary-Care Chest Pain) upload patient data? Where is it calculated?
- Calculation runs locally in the browser; inputs and results are not uploaded. For licensed clinicians only; interpret with history, investigations and local protocols — not a diagnosis or prescription.
- How is INTERCHEST Rule (Primary-Care Chest Pain) calculated in practice? Can you show a worked example?
- Inputs: Male sex and age ≥55 y No (0), Known coronary artery disease No (0), Pain related to effort No (0), Pain feels like pressure No (0), Physician initially suspected serious disease No (0), Pain reproducible by chest-wall palpation No (0) → Result: INTERCHEST 0 pts（Cue: ≤1 — low CAD probability in primary-care derivation） Inputs: Male sex and age ≥55 y Yes (+1), Known coronary artery disease Yes (+1), Pain related to effort Yes (+1), Pain feels like pressure Yes (+1), Physician initially suspected serious disease Yes (+1), Pain reproducible by chest-wall palpation Yes (−1) → Result: INTERCHEST 4 pts（Cue: ≥2 — not low risk; arrange further evaluation）