Wells' Criteria Score for Predicting Pulmonary Embolism Risk for Use Inside Your EMR.
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This snippet, or dot phrase template, can be used for completing a Wells' Criteria Assessment for Pulmonary Embolism in the EMR of your choosing. Complete the standard questions and immediately get a score with a risk assessment.
This snippet uses the Three-Tier Model for its results, but also references the Two-Tier Model in those results.
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Wells' Criteria for PE
- Clinical signs and symptoms of DVT? {formmenu: No; Yes; name=dvt}
- PE is #1 diagnosis OR equally likely? {formmenu: No; Yes; name=pediag}
- Heart rate >100? {formmenu: No; Yes; name=heart}
- Immobilization at least 3 days OR surgery in the previous 4 weeks? {formmenu: No; Yes; name=immobile}
- Previous, objectively diagnosed PE or DVT? {formmenu: No; Yes; name=previous}
- Hemoptysis? {formmenu: No; Yes; name=hemoptysis}
- Malignancy w/ treatment within 6 months or palliative? {formmenu: No; Yes; name=malignancy}
Results {=finalscore} points
{if: finalscore<2}Low risk group: 1.3% chance of PE in an ED population.
Another study assigned scores ≤ 4 as “PE Unlikely” and had a 3% incidence of PE.{elseif: finalscore<6.1}Moderate risk group: 16.2% chance of PE in an ED population.
Another study assigned scores > 4 as “PE Likely” and had a 28% incidence of PE.{elseif: finalscore>6.1}High risk group: 40.6% chance of PE in an ED population.
Another study assigned scores > 4 as “PE Likely” and had a 28% incidence of PE.{endif}{note: preview=no} Calculating the score {dvtscore=3 if dvt else 0}{pescore=3 if pediag else 0}{hrscore=1.5 if heart else 0}{imscore=1.5 if immobile else 0}{prevscore=1.5 if previous else 0}{hemoscore=1 if hemoptysis else 0}{malignscore=1 if malignancy else 0}{finalscore=dvtscore+pescore+hrscore+imscore+prevscore+hemoscore+malignscore}{endnote}
Results {=finalscore} points
{if: finalscore<2}Low risk group: 1.3% chance of PE in an ED population.
Another study assigned scores ≤ 4 as “PE Unlikely” and had a 3% incidence of PE.{elseif: finalscore<6.1}Moderate risk group: 16.2% chance of PE in an ED population.
Another study assigned scores > 4 as “PE Likely” and had a 28% incidence of PE.{elseif: finalscore>6.1}High risk group: 40.6% chance of PE in an ED population.
Another study assigned scores > 4 as “PE Likely” and had a 28% incidence of PE.{endif}{note: preview=no} Calculating the score {dvtscore=3 if dvt else 0}{pescore=3 if pediag else 0}{hrscore=1.5 if heart else 0}{imscore=1.5 if immobile else 0}{prevscore=1.5 if previous else 0}{hemoscore=1 if hemoptysis else 0}{malignscore=1 if malignancy else 0}{finalscore=dvtscore+pescore+hrscore+imscore+prevscore+hemoscore+malignscore}{endnote}
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Note: This snippet is based on a version found here, on mdcalc.com. We recommend validating the outcomes of this snippet against standards to ensure that the result is accurate to those standards.
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