🦠 ATLAS Score (C. difficile Severity / Cure)
UseWhen to use: adults with CDI when discussing severity and monitoring intensity.
StrataHigher scores associate with lower cure rates; ≥4 often high-risk in literature.
LimitsWhen not to use: instead of fulminant-CDI recognition (shock, ileus, … · Pitfall: ignoring local IDSA/SHEA severity criteria. · Does not alone choose fidaxomicin vs vancomycin.
SourceMiller MA et al. ATLAS CDI score literature
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
0–5 total.
When to use
When to use: adults with CDI when discussing severity and monitoring intensity.
How it works
Age≥60 + concurrent systemic Abx + WBC≥15 + albumin<2.5 + Cr≥1.5 (1 each).
Key points
- 0–5 total.
- Bedside severity adjunct.
- Next: IDSA severity / guidelines CDI tool.
References
- Miller MA et al. ATLAS CDI score literature
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.
| Age ≥ 60 years | No (0) |
|---|---|
| Treatment with systemic antibiotics during CDI therapy | No (0) |
| Leukocytosis (WBC ≥ 15 × 10⁹/L) | No (0) |
| Albumin < 2.5 g/dL (25 g/L) | No (0) |
| Serum creatinine ≥ 1.5 mg/dL (133 µmol/L) | No (0) |
→ATLAS0/5
- Band：Lower risk of cure failure in derivation
- Cue：≥4 often flagged high-risk in literature
| Age ≥ 60 years | Yes (1) |
|---|---|
| Treatment with systemic antibiotics during CDI therapy | Yes (1) |
| Leukocytosis (WBC ≥ 15 × 10⁹/L) | Yes (1) |
| Albumin < 2.5 g/dL (25 g/L) | Yes (1) |
| Serum creatinine ≥ 1.5 mg/dL (133 µmol/L) | Yes (1) |
→ATLAS5/5
- Band：Higher risk of cure failure / adverse outcome
- Cue：≥4 often flagged high-risk in literature
Verification & sources · governance
FAQ
Frequently asked questions
- Does ATLAS Score (C. difficile Severity / Cure) 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 ATLAS Score (C. difficile Severity / Cure) calculated in practice? Can you show a worked example?
- Inputs: Age ≥ 60 years No (0), Treatment with systemic antibiotics during CDI therapy No (0), Leukocytosis (WBC ≥ 15 × 10⁹/L) No (0), Albumin < 2.5 g/dL (25 g/L) No (0), Serum creatinine ≥ 1.5 mg/dL (133 µmol/L) No (0) → Result: ATLAS 0 /5（Band: Lower risk of cure failure in derivation, Cue: ≥4 often flagged high-risk in literature） Inputs: Age ≥ 60 years Yes (1), Treatment with systemic antibiotics during CDI therapy Yes (1), Leukocytosis (WBC ≥ 15 × 10⁹/L) Yes (1), Albumin < 2.5 g/dL (25 g/L) Yes (1), Serum creatinine ≥ 1.5 mg/dL (133 µmol/L) Yes (1) → Result: ATLAS 5 /5（Band: Higher risk of cure failure / adverse outcome, Cue: ≥4 often flagged high-risk in literature）