For clinical reference only — does not replace local trust guidelines or clinical judgement.
Clinical Presentations

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🚨 Life-Threatening — exclude first
If suspected, escalate now.
Ventricular Arrhythmia
Massive PE
GI Bleed
Ruptured AAA
Acute Coronary Syndrome
Aortic Stenosis with syncope
🚨

Dangerous Causes Causes

Ventricular ArrhythmiaMassive PEGI BleedRuptured AAAACS
❤️

Cardiac Causes

Arrhythmia (VT, AF, heart block)Aortic StenosisHOCMACS
🧠

Neurological Causes

SeizureStroke / TIASubarachnoid Haemorrhage
🩸

Other Causes

VasovagalOrthostatic HypotensionHypoglycaemiaAnaemia / Haemorrhage