Acute & emergency · UKMLA & AKT
Myocardial infarction
A free high-yield preview for the UKMLA Applied Knowledge Test. Below are the key points to recognise myocardial infarction — the full SA Note notes add investigations, management, complications and 10 practice questions.
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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