Question

Describe in detail where electrodes are placed during a resting ECG and how they differ during a stress test. Explain why they differ.

Answer 1

ANS) ECG or the Electrocardiography is the procedure of constructing a electrocardiogram,means a recording.This is a graph to understand the electrical actin of heart with the help of electrodes arranged on the skin.This type of electrodes notice the little electrical alterations that are a result of heart muscle depolarization come after the repolarization at the time of every cardiac cycle.

Alterations in the usual ECG pattern happen in many cardiac irregularities ,involving the cardiac rhythm disruptions,insufficient coronary artery blood supply and electrolyte disruptions.

RESTING ECG;

In the case of a resting 12 lead ECG,10 electrodes are put down on the clients arms and also on the exterior part of the chest.The total immensity of the heart's electrical potential is then calculated from 12 non-identical angles and is noted over a interval of time( Normally 10 seconds).By this method,the total immensity and way of hearts electrical depolarization is picked up at every moment all over the cardiac cycle.And there are 3 major parts for an ECG and they are,

P WAVE - Shows the depolarization of atria.

Q,R,S COMPLEX-Shows the depolarization of ventricle.

T WAVE - Shows the repolarization of ventricles.

STRESS TESTS;

This indicates how skillfully your heart controls physical action.The heart pump forcefully and quickly at the time you exercise.Some of the heart diseases are easy to discover at the time when the heart is heavy at work.At the time of a stress test,the heart will be examined when you do exercise on a treadmill.And in case if you are unhealthy to do the exercise,then your physician will provide you the medications that increase your heartbeat and forceful as if you are literally doing exercise.In case if you feel problems in finishing the stress test in the correct interval of time,then that implies that there is a decreased blood supply to your heart and also this decreased amount of blood supply may be due to different heart problems.

A physician will be setting many electrodes on the upper limbs,lower limbs and chest and the health care provider may required to remove the surplus hair before keeping the electrodes.These electrodes will be joined by wires to the electrocardiogram apparatus,which note the electrical actions of the heart.After that you will walk on a treadmill machine and at first the walking will be slow and after that the speed of walking increases.And while walking,you will come to a aimed heart rate placed by your physician.And you are needed to stop the walking in case if you experience any kind of chest pain,breathlessness or the fatigue.After finishing the test,you will be observed for ten to fifteen minutes or till your heart rate comes to usual rate.

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