0
this occurs with a premature beat known as a PAC (premature atrial contraction) A t wave is ventricular repolarization (the ventricle getting ready to beat again. A premature atrial contraction may happen at this time but you can discern the actual p wave as it is hidden in the t wave. Pac's are normal, most people have them occasionally. They can increase with stress, caffeine, smoking. The other cause would be in an irregularly fast arrhythmia in with the heart is beating so fast that the p wave is coming very close to the t wave and hard to discern it
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What is the first wave of an ECG?
I believe it is the P Wave. A good way to remember is all of the Waves are in alphabetical order. P Wave, Q-R-S Waves and the T Wave
What does a inverted QRS wave indicate?
In QRS wave, P wave shows atrial contraction or depolarisation whereas, T wave shows ventricular repolarisation.
How does the P wave the qrs complex and t wave relate to the electrical and mechanical evemts of the cardiac cycle?
its related to the dialysis
What has the author T P Cotter written?
T. P. Cotter has written: 'Collision kinetics in a shock wave' 'Potentialities and problems of nuclear rocket propulsion'
How do you calculate the period of a wave from its frequency?
T=Period F=frequency T=1/F Period=1/F
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.
What does a segment of an ECG tracing indicate?
P waves represent the atrial depolarization. QRS complex represent the ventricular depolarization. T waves represent the ventricular repolarization.
Which is faster an s-wave or a p-wave?
P-Wave
What is a p wave?
A p wave is the primary or compression wave in a seismic wave. it's wavy
Is surface wave faster then a p wave?
no a p wave is faster than s wave
Does a ventricular rhythm have p waves?
Ventricular depolarization and repolarization are represented by the qrs complex and the t wave.
In the human ecg the voltage is zero or close to 0 between the t wave and next p wave and again between the qrs complex and t wave why?
At the points described the membrane potential (or "voltage") is the resting membrane potential which is around -90mV not 0.
