Medicine A patient presents with recent onset of breathlessness. An ECG is taken (shown below). What is the diagnosis? A Atrial fibrillation (AF) B Paroxysmal supraventricular tachycardia (PSVT) C Acute myocardial infarction (AMI) D Multifocal atrial tachycardia (MAT) 💡 Explanation A patient presents with recent onset of breathlessness. An ECG is taken (shown below). What is the diagnosis? ✓ Correct Answer: D. Multifocal atrial tachycardia (MAT)