Current categoryUnknown— insufficient data

EXPERIMENTAL TOOL — NOT FOR CLINICAL JUDGMENT

This educational prototype is not medical advice, does not replace clinician assessment, and must not be used to diagnose, triage, or select treatment for a patient. Do not enter identifiable patient information. Confirm every result against the full guideline, local protocols, and qualified clinical judgment.

2026 AHA/ACC acute PE framework

Acute pulmonary embolism
clinical category explorer

Answer the questions that are known. The tool reports the highest apparent category, any additional risk signals, and a transparent confidence label. Unknown data lowers confidence; it does not mean the feature is absent.

Based on: AHA/ACC/ACCP/ACEP/CHEST/SCAI/SHM/SIR/SVN 2026 guideline.

01 / presentation

How was the PE identified?

Symptoms at the time of diagnosis

02 / hemodynamics

Is there cardiopulmonary failure?

Blood pressure / perfusion — worst state Any hypoperfusion marker NOW?

03 / severity and heart

What do the severity score and tests show?

Clinical severity score

sPESI — check all present (1 point each) Unable to verify sPESI

sPESI status unknown.

RV dysfunction on imaging or echocardiography Cardiac biomarker elevation (troponin and/or BNP/NT-proBNP) PE location on imaging

04 / breathing

What respiratory support is required?

Respiratory status — highest level

05 / safety check

Is there a bleeding or lysis concern?

Any bleeding or thrombolysis caution?

Scope and limitations

This prototype uses a simplified, rule-based interpretation of the AHA/ACC category concepts. It is not a validated calculator and cannot determine eligibility for anticoagulation, thrombolysis, catheter intervention, embolectomy, ECMO, discharge, or admission. A category may be indeterminate when key data are unknown. ECG RV strain is a supporting finding only and does not change the A–E letter, so it is intentionally not asked. The full guideline and institution-specific pathways take precedence.