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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 is QRS in ECG?
The QRS complex on an ECG represents ventricular depolarisation. This wave should have the greatest amplitude.
In a normal ECG tracing?
the repolarization of the atria is hidden by the QRS wave
In a normal ECG trace, what does a QRS wave indicate?
the contraction of the ventricles
How does hyperkalemia relate to the ECG?
Hyperkalemia cause tall t wave and wide qrs wave
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 are the 3 components of the ECG trace?
The EKG or ECG components are the P wave (contraction of the atria), the QRS complex (the contraction of the ventricles) and the T wave (repolarization of the ventricles).
The portion of the ECG tracing between the QRS complex and the T wave is called the?
ST segment
What do the letters PQRST represent?
P, Q, R, S and T each represent a wave of the electrocardiogram (ECG). The waves, and the ECG in general, confer a graphic representation of the hearth's electric activity. The ECG of a healthy person usually contains three waves, called the P wave, the QRS complex and the T wave. The P wave corresponds to the electric depolarization of the auricles, the QRS complex corresponds to the electric depolarization of the ventricles and the repolarization of the auricles, and the T wave corresponds to the electric repolarization of the ventricles. A complete period of an ECG (that is, the P, QRS, and T waves) represents the electrical activity of the heart for one pulse.
Atrial repolarization coincides in time with?
Atrial repolarization coincides with the QRS complex on the ECG. The T-wave corresponds to Ventricular repolarization. 'with tHE t-wave' <-- WRONG
Which ecg wave must occur before the ventricles can relax?
The QRS complex causes the ventricles to contract. This has to happen before they can relax.
What are the main events recorded by an ecg?
The P-wave corresponds to atrial depolarisation.The QRS complex corresponds to ventricular depolarisation.The T-wave corresponds to ventricular repolarisation.
