STEMI
NSTEMI Still a MI however no ST changes will be seen. Bloods will show an increase in troponin indicating damage to the myocardium. Can have T wave changes and ST depression
ST Depression Usually happens in patients with stable angina and is seen when exercising
URGENT ECGs 1. Arrhythmias Ventricular fibrillation Ventricular tachycardia 2. Pauses Sinus arrest Asystole
Have a go 5 ECGs Measure the heart rate, rhythm and any abnormalities you can spot
Answers 1. Inferior STEMI Obvious ST elevation in leads II, III and aVF. Reciprocal changes of ST depression seen Slight elevation in other leads: Indication of a severe widespread MI HR 90bpm. 2. Sinus tachycardia Heart rate of approx. 144bpm (24 times 6). Everything else is all within normal limits. 3. Atrial fibrillation Irregularly irregular- no pattern. HR 78bpm. 4. Right bundle branch block with a long PR interval ‘RSR’ pattern in V1. QRS widen (approx. 160ms). PR interval prolonged (approx. 320ms - 8 small squares times 40). HR 72bpm (12x6) 5. Sinus rhythm with Ves Normal rate, normal complexes just a couple of ventricular ectopic's. HR 54bpm.
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