Effectiveness of Clinical Decision Tools in Predicting Pulmonary Embolism

Table 1

Wells criteria.

Variable	Score
Clinical signs and symptoms of DVT	3
PE is #1 diagnosis or equally likely	3
	1.5
Immobilization^a or surgery^b	1.5
Prior, objectively diagnosed PE or DVT	1.5
Hemoptysis	1
Malignancy^c	1

^aAt least three days; ^bin previous four weeks; ^ctreatment within 6 months or palliative care.