MEDICAL
HEART AND PERICARDIUM
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Electrocardiogram
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Echocardiogram
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Angiogram
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Magnetic Resonance Imagery (MRI)
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Detailed explanation-1: -The electrical impulse then reaches the ventricles. This can be seen in the Q, R and S waves of the ECG, which is called the QRS complex. The ventricles contract.
Detailed explanation-2: -The normal pattern of electrical activity that is seen on an ECG is called a sinus rhythm. Each heartbeat produces a regular, identifiable pattern; the P wave, the QRS complex, and the T wave. These segments identify the electrical activity of specific parts of the heart.
Detailed explanation-3: -For regular heart rhythms, heart rate can easily be estimated using the large squares (0.2s) on an ECG. Simply identify two consecutive R waves and count the number of large squares between them. By dividing this number into 300 (remember, this number represents 1 minute) we are able to calculate a person’s heart rate.