It is the name for the combination of three of the graphical deflections seen on a typical electrocardiogram (ECG). It is usually the central and most visually obvious part of the tracing. It corresponds to the depolarization of the right and left ventricles of the heart.
In QRS wave, P wave shows atrial contraction or depolarisation whereas, T wave shows ventricular repolarisation.
The PR wave,QRS wave, and T wave.
The QRS complex on an ECG represents ventricular depolarisation. This wave should have the greatest amplitude.
Hyperkalemia cause tall t wave and wide qrs wave
There are a number of things that may happen during the QRS wave. There will be ventricular depolarization and right after absolute refractory period for ventricles will occur.
the contraction of the ventricles
the repolarization of the atria is hidden by the QRS wave
QRS wave
The QRS complex and the P wave are features of the electrocardiogram, which graphically displays the electrical activity of the heart. The P wave is generated when the atria, or upper chambers of the heart contract. The QRS complex is generated when the ventricles or lower chambers of the heart contract. If there is a P wave but no QRS, the the heart's main pump is not functioning. This would cause death quickly.
Which part of the QRS complex represents the repolarization of the atria?A.The Q waveB.The R waveC.The S waveD.None of the aboveThe S wave
Qrs complex
QRS