Copyright & attribution

Original PE Compass material

The original PE Compass software, user interface, visual arrangement, explanatory text, and original graphics are copyrighted by Dr Kay unless another source is identified.

Trademark

PE Compass™ is used as an unregistered trademark of Dr Kay. The ™ symbol does not imply formal registration. Third-party names, marks, and logos remain the property of their respective owners.

Clinical sources

The clinical framework and evidence grading are based on the 2026 AHA/ACC multisociety guideline for adults with acute pulmonary embolism and its July 2026 correction. The relevant recommendation and evidence information is displayed within the decision guide.

View the guideline publication

PESI, sPESI, and the Hestia criteria are established clinical tools developed by their original authors. Their inclusion does not transfer ownership to PE Compass and does not imply endorsement by those authors or organizations.

Independent tool

PE Compass is an independent clinical decision-support tool. It is not affiliated with or endorsed by the AHA, ACC, or the other organizations associated with the cited guideline.

Use of this site

The site may be accessed for personal and professional reference. The original application or its protected content may not be reproduced, republished, resold, modified, or distributed without prior permission from Dr Kay, except where permitted by law.

PE Compass is not medical advice or an autonomous care system. Clinicians remain responsible for verifying current evidence, contraindications, patient-specific factors, and local protocols.