Mapping of CQL conditions to CDS Hooks cards Condition: NoDDimerNoWells Card: It is recommended to assess the patient's risk for pulmonary embolism (PE) and evaluate D-dimer levels before proceeding with a CTPA order. Use the following link to evaluate the risk. Launch Questionnaire: Yes Condition: NoDDimerWellsLessThanOrEqualTo4 Card: Wells score indicates a low risk, thus it is necessary to evaluate the D-dimer level before determining the need for a CTPA. Use the following link to evaluate the risk. Launch Questionnaire: Yes Condition: NotElevatedDDimerNoWells Card: Since the D-dimer level is not elevated, it is recommended to assess the Well's score before proceeding with a CTPA. Use the following link to evaluate the risk. Launch Questionnaire: Yes Condition: NotElevatedDDimerWellsLessThanOrEqualTo4 Card: Based on the patient's D-dimer level and Well's score, a CTPA is not recommended. Launch Questionnaire: No