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What is QRS in ECG?
The QRS complex on an ECG represents ventricular depolarisation. This wave should have the greatest amplitude.
Is the T wave higher than the QRS complex in this ECG reading?
No, the T wave is not higher than the QRS complex in this ECG reading.
Which phase of the ECG indicates ventricular excitation and contraction?
The QRS complex on an ECG indicates ventricular excitation and contraction. It represents depolarization of the ventricles as they prepare to contract and pump blood out to the rest of the body.
Abnormally slow depolarization of the ventricles would most change the shape of the in an ECG tracing?
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Why T wave is in same direction of QRS wave in ECG?
The T wave in an ECG is typically in the same direction as the QRS complex because both represent ventricular depolarization and repolarization, respectively. During the QRS complex, the ventricles depolarize, and then during the T wave, they repolarize, leading to the similar orientation of the waves.
The portion of the ECG tracing between the QRS complex and the T wave is called the?
ST segment
What do P, QRS, and T waves represent in an electrocardiogram (ECG)?
The P wave represents atrial depolarization, the QRS complex represents ventricular depolarization, and the T wave represents ventricular repolarization in an electrocardiogram (ECG).
Point after which pressure begins to rise in the aorta on an ECG tracing?
The point where pressure begins to rise in the aorta corresponds to the QRS complex on an ECG tracing as the ventricles contract and pump blood into the aorta. This is also known as the onset of ventricular systole.
Why is the T wave positive in the ECG?
The T wave is positive in an ECG due to the direction and charge. This positive deflection occurs after each QRS complex.
What portion of the ECG indicates ventricular repolarization?
The portion of the ECG that indicates ventricular repolarization or recovery is the t wave. It is the wave found after the QRS complex (Ventricular depolarizaton) in a normal ECG
What is atrial repolarization indicated by?
The atrial repolarization occurs during the QRS complex of the ECG but is obscured by the ventricle depolarization.
Which ecg wave must occur before the ventricles can relax?
The T wave on an ECG must occur before the ventricles can relax. This wave represents the repolarization of the ventricles, signifying that they have finished contracting and are now primed for relaxation.
