🏃 Duke Activity Status Index (DASI)
UseWhen to use: functional capacity / some preoperative discussions without CPET.
Strata<4 METs often flags limited capacity in perioperative conversations.
LimitsWhen not to use: as replacement for indicated CPET/stress testing. · Pitfall: over-reporting unusual peak efforts. · Language/culture may affect item interpretation.
SourceHlatky MA et al. DASI
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
12 weighted items.
When to use
When to use: functional capacity / some preoperative discussions without CPET.
How it works
Weighted yes/no sum (max 58.2); VO₂=(0.43×DASI)+9.6; METs=VO₂/3.5.
Key points
- 12 weighted items.
- METs from VO₂.
- Next: risk discussion.
References
- Hlatky MA et al. DASI
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.
| Take care of self (eat, dress, bathe) | No (0) |
|---|---|
| Walk indoors | No (0) |
| Walk 1–2 blocks on level ground | No (0) |
| Climb a flight of stairs / walk up a hill | No (0) |
| Run a short distance | No (0) |
| Light housework (dusting, dishes) | No (0) |
| Moderate housework (vacuuming, carrying groceries) | No (0) |
| Heavy housework (scrubbing floors, moving furniture) | No (0) |
| Yardwork (raking, weeding, mowing) | No (0) |
| Have sexual relations | No (0) |
| Moderate recreation (golf, bowling, dancing, doubles tennis) | No (0) |
| Strenuous sports (swimming, singles tennis, football, basketball, skiing) | No (0) |
→DASI0.00/58.2
- VO₂ peak est.：9.6 mL/kg/min
- METs：2.7
- Cue：<4 METs — low functional capacity cue (perioperative risk discussions)
| Take care of self (eat, dress, bathe) | Yes (+2.75) |
|---|---|
| Walk indoors | Yes (+1.75) |
| Walk 1–2 blocks on level ground | Yes (+2.75) |
| Climb a flight of stairs / walk up a hill | Yes (+5.50) |
| Run a short distance | Yes (+8.00) |
| Light housework (dusting, dishes) | Yes (+2.70) |
| Moderate housework (vacuuming, carrying groceries) | Yes (+3.50) |
| Heavy housework (scrubbing floors, moving furniture) | Yes (+8.00) |
| Yardwork (raking, weeding, mowing) | Yes (+4.50) |
| Have sexual relations | Yes (+5.25) |
| Moderate recreation (golf, bowling, dancing, doubles tennis) | Yes (+6.00) |
| Strenuous sports (swimming, singles tennis, football, basketball, skiing) | Yes (+7.50) |
→DASI58.20/58.2
- VO₂ peak est.：34.6 mL/kg/min
- METs：9.9
- Cue：>=7 METs — higher capacity band
Verification & sources · governance
FAQ
Frequently asked questions
- Does Duke Activity Status Index (DASI) 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 Duke Activity Status Index (DASI) calculated in practice? Can you show a worked example?
- Inputs: Take care of self (eat, dress, bathe) No (0), Walk indoors No (0), Walk 1–2 blocks on level ground No (0), Climb a flight of stairs / walk up a hill No (0), Run a short distance No (0), Light housework (dusting, dishes) No (0), Moderate housework (vacuuming, carrying groceries) No (0), Heavy housework (scrubbing floors, moving furniture) No (0)… → Result: DASI 0.00 /58.2（VO₂ peak est.: 9.6 mL/kg/min, METs: 2.7, Cue: <4 METs — low functional capacity cue (perioperative risk discussions)） Inputs: Take care of self (eat, dress, bathe) Yes (+2.75), Walk indoors Yes (+1.75), Walk 1–2 blocks on level ground Yes (+2.75), Climb a flight of stairs / walk up a hill Yes (+5.50), Run a short distance Yes (+8.00), Light housework (dusting, dishes) Yes (+2.70), Moderate housework (vacuuming, carrying groceries) Yes (+3.50), Heavy housework (scrubbing floors, moving furniture) Yes (+8.00)… → Result: DASI 58.20 /58.2（VO₂ peak est.: 34.6 mL/kg/min, METs: 9.9, Cue: >=7 METs — higher capacity band）