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Wells Score For PE Calculator

Work out wells score for pe instantly with clear inputs, formula shown and shareable results.

About Wells Score For PE Calculator

Applies the weighted Wells criteria for pulmonary embolism, where the two clinical judgement items score three points each.

Formula

Wells PE

3 points each for DVT signs and PE being the most likely diagnosis; 1.5 each for tachycardia, recent immobilisation or surgery and previous VTE; 1 each for haemoptysis and malignancy

Worked example

With the default values below, Wells Score For PE Calculator returns Wells PE score of 5.5. Change any input above and every figure here is recalculated in your browser.

Inputs used

Three-point items metaccepts 0–2
1
One-and-a-half point items metaccepts 0–3
1
One-point items metaccepts 0–2
1

Results

Wells PE score
5.5
Two-tier result
PE likely
Three-tier probability
Moderate probability
Suggested pathway
Proceed to CT pulmonary angiography

Step by step

  1. 1Values used
  2. 2Wells PE
  3. 3Wells PE score= 5.5
  4. 4Two-tier result= PE likely
  5. 5Three-tier probability= Moderate probability
  6. 6Suggested pathway= Proceed to CT pulmonary angiography

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.
  • Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.
  • This is an estimate for general information and not professional medical advice. See the full disclaimer for the limits that apply to this kind of calculator.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Educational estimate only. Not a substitute for professional clinical judgement, and must not be used to make treatment or dosing decisions.

Frequently Asked Questions

What is the likely and unlikely cut-off?

More than 4 points means PE likely; 4 or fewer means unlikely and suitable for D-dimer testing.

How does PERC differ?

PERC is used to avoid testing altogether in very low risk patients, whereas Wells decides between D-dimer and imaging.

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