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Emergency MedicineRespiratory

Pulmonary Embolism Assessment

Risk stratification, diagnosis, and management of pulmonary embolism using Wells score, PERC rule, and PESI score.

Source: NICE NG158; ESC 2019 PE Guidelines

Used in: Venous Thromboembolism (DVT & PE)
Step 1 of ~11
question

Is This Massive (High-Risk) PE?

High-risk PE features (any one): • Cardiac arrest • Obstructive shock: SBP <90 mmHg or drop >40 mmHg for >15 min • Persistent haemodynamic instability not due to arrhythmia, hypovolaemia, or sepsis

Related

Curated clinical cross-links plus same-class fallbacks.

📚 MRCEM Revision

Featured in these MRCEM clinical pathways

A deeper exam-focused version of this pathway is available on our sister siteReviseMRCEM.

MRCEM Primary / Intermediate / OSCE candidates: each pathway includes exam-style questions, RCEM/NICE citations, and FAQ summaries.

Decision support only. Always apply local guidelines and clinical judgement.