Work with the following EKG strip for following questions: The EKG strip above i

Question

Work with the following EKG strip for following questions: The EKG strip above is indicative of STEMI: ST-segment elevated myocardial infraction. Another common sign of acute MI is wide QRS complex. Research both pathological EKG signs and confirm their presence (or not) on this EKG strip. Furthermore, every EKG has universal voltage and time scale for interpretation of heart rate/period/amount of polarization etc. Again, learn how to apply this scale and answer following questions. What is the heart rate of this patient? Is the heart in a normal sinus rhythm? What part of heart is affected? Design a new method to diagnose the condition depicted above I would like to see original bioengineering approach.

Explanation / Answer

a) If 2 consecutive R waves are separated by a large box then the rate is 300 beats per minute. Here the R waves are separated by 3 large boxes so heart rate is 300/3 = 100 bpm.

b) The heart is not having a normal sinus rhythm as it does not have a proper PQRS wave. QRS complex is widened and the ST segment is elevated.

c) aVF variations shows inferior myocardial infarction and changes in chest leads shows anterior or lateral myocardial infarction.

d) chest radiograph and echocardiogram can be used to identify myocardial infarction.

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