ToolsCalculators
Duke Activity Status Index (DASI)
Self-reported functional capacity and estimated peak oxygen uptake.
Duke Activity Status Index (DASI)
Can you take care of yourself (eating, dressing, bathing, using the toilet)?
Can you walk indoors, such as around your house?
Can you walk 1-2 blocks on level ground?
Can you climb a flight of stairs or walk up a hill?
Can you run a short distance?
Can you do light work around the house, such as dusting or washing dishes?
Can you do moderate work around the house, such as vacuuming, sweeping floors, or carrying groceries?
Can you do heavy work around the house, such as scrubbing floors or moving heavy furniture?
Can you do yard work, such as raking leaves, weeding, or pushing a power mower?
Can you have sexual relations?
Can you participate in moderate recreational activities, such as golf, bowling, dancing, doubles tennis, or throwing a ball?
Can you participate in strenuous sports, such as swimming, singles tennis, football, basketball, or skiing?
Result0.00 points (max 58.2)
Estimated functional capacity is below 4 METs, a threshold associated with increased perioperative cardiopulmonary risk.
- Estimated peak VO2
- 9.6 mL/kg/min
- Estimated functional capacity
- 2.7 METs
When to use
- Estimating exercise capacity from a brief self-administered questionnaire when formal cardiopulmonary exercise testing is unavailable.
- Supporting preoperative risk discussions ahead of intermediate- or high-risk noncardiac surgery.
Formula
DASI = sum of weighted points for 12 activities of daily living (range 0-58.2). Estimated peak VO2 (mL/kg/min) = 0.43 x DASI + 9.6; METs = VO2/3.5.
Pearls and pitfalls
- A self-reported instrument; it correlates with, but does not replace, measured exercise capacity.
- A cutoff near 4 METs is commonly used in perioperative guidelines to flag patients warranting further cardiac evaluation.