Wells score for PE (modified)

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Sadaf Sharfaei M.D.[2]

Overview

Modified Wells Score Calculator for PE

This handy calculator computes the pre-test probability of pulmonary embolism using modified Wells criteria.

Check all boxes that apply to your patient:

Pulmonary Embolism Modified Wells Score Calculator
Variable Score
Clinically suspected DVT (leg swelling, pain with palpation) 3
Alternative diagnosis is less likely than PE 3
Immobilization/surgery in previous four weeks 1.5
Previous history of DVT or PE 1.5
Tachycardia (heart rate more than 100 bpm) 1.5
Hemoptysis 1
Malignancy (treatment for within 6 months, palliative) 1
Modified Wells Score:
Interpretation:

Interpretation

Shown below is the pretest probability of PE according to modified Wells criteria:[1][2]

  • Score ≤4: PE unlikely (Rate of PE: ~7.8%)
  • Score >4: PE likely (Rate of PE: ~40.7%)

See also

References

  1. ↑ Stein PD, Woodard PK, Weg JG, Wakefield TW, Tapson VF, Sostman HD, Sos TA, Quinn DA, Leeper KV, Hull RD, Hales CA, Gottschalk A, Goodman LR, Fowler SE, Buckley JD (2007). "Diagnostic pathways in acute pulmonary embolism: recommendations of the PIOPED II Investigators". Radiology. 242 (1): 15–21. doi:10.1148/radiol.2421060971. PMID 17185658.
  2. ↑ van Belle A, Büller HR, Huisman MV, Huisman PM, Kaasjager K, Kamphuisen PW; et al. (2006). "Effectiveness of managing suspected pulmonary embolism using an algorithm combining clinical probability, D-dimer testing, and computed tomography". JAMA. 295 (2): 172–9. doi:10.1001/jama.295.2.172. PMID 16403929.
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