Acute & emergency · UKMLA & AKT
Myocardial infarction
A free high-yield preview for the UKMLA Applied Knowledge Test, covering how to recognise this condition. The full SA Note notes add investigations, management and complications, with practice questions on this topic.
Key high-yield points
- Central crushing chest pain - severe, radiating to left arm/jaw/back; not relieved by GTN
- Diaphoresis, nausea and vomiting - particularly with inferior MI (vagal activation)
- Atypical presentations - epigastric pain, fatigue, syncope, or silent MI - more common in diabetics and elderly
A normal resting 12-lead ECG does NOT exclude ACS - up to 30% of patients with ACS have a normal or non-diagnostic ECG at presentation. Serial ECGs and troponin are essential.
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