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1. George has suffered a myocardial infraction A. Explain to his non-medical oriented Family what has happened...

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Medical Sciences


1. George has suffered a myocardial infraction

A. Explain to his non-medical oriented Family what hashappened to his heart?

B. When you analyzed his ECG, you referred to severaldifferent leads such as lead I and lead III, what are leads?

C. Why is it possible to record an ECG on the body surfacewithout direct access to the heart?

2. The following paragraph is a summary of a news paperarticle: A new treatment for atrial fibrillation due to anexcessively rapid heart rate at the SA node involves a high-voltageelectrical pulse administer to the AV node to destroy itsautorhythmic cells. A ventricle pacemaker then implanted in thepatient.

Briefly explain the physiological rationale of this treatment.Why is Rapid atrial depolarization dangerous? Why is the AV nodedestroyed in this procedure? Why must a pacemaker beimplanted?

Answer & Explanation Solved by verified expert
3.7 Ratings (557 Votes)
A In simple terms myocardial term is refered to as heart attack this condition occurs when one of the hearts coronary arteries is blocked suddenly or has extremely slow blood flow because of whichblood flow to the heart muscle is abruptly cut off causing tissue damage B Each lead is meant to pick up electrical activity    See Answer
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