Pulmonary Embolism Wells Score

 

		Symptoms of DVT (3 points)
		No alternative diagnosis better explains the illness (3 points)
		Tachycardia with pulse > 100 (1.5 points)
		Immobilization (>= 3 days) or surgery in the previous four weeks (1.5 points)
		Prior history of DVT or pulmonary embolism (1.5 points)
		Presence of hemoptysis (1 point)
		Presence of malignancy (1 point)

 

Total Criteria Point Count:
 

 

Pulmonary Embolism Risk Score Interpretation

 

Score > 6:	High probability
Score >= 2 and <= 6:	Moderate probability
Score < 2:	Low Probability

 

Notes

• The article referenced below also refers to a cut point of 4 points or less as PE unlikely as long as the specific D-Dimer test is negative.
• Refer to the original article below for all details.

 

References

1. Wells PS, Anderson DR, Rodger M, et al. Derivation of a simple clinical model to categorize patients probability of pulmonary embolism: increasing the models utility with the SimpliRED D-dimer. Thromb Haemost. 2000 Mar;83(3):416-20. PubMed ID: 10744147