🚨 CART Cardiac Arrest Risk Triage
UseWhen to use: adult ward surveillance when RR, HR, diastolic BP and age are available.
StrataHigher CART predicted arrest/ICU transfer better than MEWS in derivation; escalate per local RRT rules.
LimitsWhen not to use: as the sole trigger without nursing concern. · Pitfall: using a single snapshot instead of trend/worst values. · Does not replace airway/breathing/circulation primary survey.
SourceChurpek MM, et al. Crit Care Med 2012 (CART)
This-shift next steps
After scoring: open the scene pack, peer scores, and the matching pathway. Local reference — no HIS write.
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Methodology · worked example, guidelines & full notes
Four objective variables.
When to use
When to use: adult ward surveillance when RR, HR, diastolic BP and age are available.
How it works
RR (<21=0 … ≥30=22) + HR (<110=0, 110–139=4, ≥140=13) + DBP (≥50=0 … <35=13) + age (<55=0, 55–69=4, ≥70=9). Max 57.
Key points
- Four objective variables.
- Literature cutoffs often ~≥17–20.
- Next: MEWS/NEWS2 and local RRT.
References
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.
| Highest respiratory rate | 24–25 (12) |
|---|---|
| Highest heart rate | 110–139 (4) |
| Lowest diastolic BP | 40–49 (4) |
| Age | 55–69 y (4) |
→CART24/57
- Band：Higher risk — consider escalation (literature cutoffs ~≥17–20)
- Inputs：Worst RR/HR and lowest DBP in window
| Highest respiratory rate | < 21 (0) |
|---|---|
| Highest heart rate | < 110 (0) |
| Lowest diastolic BP | ≥ 50 (0) |
| Age | < 55 y (0) |
→CART0/57
- Band：Lower relative risk vs high CART
- Inputs：Worst RR/HR and lowest DBP in window
Verification & sources · governance
FAQ
Frequently asked questions
- Does CART Cardiac Arrest Risk Triage 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 CART Cardiac Arrest Risk Triage calculated in practice? Can you show a worked example?
- Inputs: Highest respiratory rate 24–25 (12), Highest heart rate 110–139 (4), Lowest diastolic BP 40–49 (4), Age 55–69 y (4) → Result: CART 24 /57（Band: Higher risk — consider escalation (literature cutoffs ~≥17–20), Inputs: Worst RR/HR and lowest DBP in window） Inputs: Highest respiratory rate < 21 (0), Highest heart rate < 110 (0), Lowest diastolic BP ≥ 50 (0), Age < 55 y (0) → Result: CART 0 /57（Band: Lower relative risk vs high CART, Inputs: Worst RR/HR and lowest DBP in window）