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Pulmonology · Emergency Medicine

Step-by-Step Algorithm for Pulmonary Embolism calculator

Enter the published formula inputs below to calculate and interpret this score.

Clinical inputs

Use the same D-dimer unit as the cited step-by-step trial (ng/mL FEU).

Result

Complete all required inputs to calculate the score.

Formula inputs

  • clinical dvt signs
  • hemoptysis
  • pe most likely diagnosis
  • prior vte or recent surgery
  • D-dimer (ng/mL FEU)Accepted range: 0 to 100000

Primary source

van Es N et al. Secure diagnosis of pulmonary embolism with the step-by-step diagnosis. Ann Intern Med. DOI: 10.7326/M19-1202. PMID: 32031529. Scope: PE excluded (0) when D-dimer is below 1000 ng/mL FEU with zero step-by-step clinical items or below 500 ng/mL FEU with one or more items; otherwise CTPA is indicated (1). (2020)

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