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p-wave is a wave of depolarization that spreads from the SA node throughout the atria, and is usually 0.08 to 0.2 seconds (80-200 ms) in duration. The brief isoelectric (zero voltage) period after the P wave represents the time in which the impulse is traveling within the AV node and the bundle of His.
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∙ 14y ago
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∙ 12y agoleft atrial contraction... the right atrial contraction is hidden by the left cause the left atria is bigger.... if the P wave is negative or m shaped or biphasic it could indicate that the right atria is larger than the left and thus you have right atrial enlargement. Which could indicate a problem with the right side of the heart or lungs.
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∙ 14y agoThe electrical activity of the atria... and mostly the left atria as its larger and produces a larger complex... if the p wave is not uniform then it's possible you a re seeing the right atria peeking out from under, implying a possible right atrial enlargment, common in pulmonary hypertension and some other ailments
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∙ 13y agoAtrial depolarization, potassium is moving out of the cell, sodium is moving into the cell.
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∙ 6y agowhen pvc's occur so early that they fall on the t wave of preceding beat this is called
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The portion of the ECG that corresponds to atrial depolarization is the?
The portion of the ECG that corresponds to atrial depolarization is called the P wave. The P wave is the first wave on the ECG.
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.
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 is the ECG wave that results from the depolarization of the ventricle?
the P wave
What ecg curves represent recovery of the ventricles?
t wave
What does the ecg wave tracing represent?
Electrical Activity of the Heart
If you have an ECG conducted what causes the P wave?
oops
What contraction of the atria results from which wave of depolarization on the ECG tracing?
P wave
What part of the ECG records atrial contraction?
ECG records electrical activity and not mechanical, hence it has nothing to do with contraction. But P wave represents atrial depolarization.
What part of the ECG complex represents the atrial depolarization?
The P wave.
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).
In an ecg pattern the p wave is caused by what?
depolarization of atrial muscle fibers
