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An electrocardiogram (ECG) records the electrical activity of the heart. It produces a trace of the heart working and the trace for an individual can be compared to that of a normal, healthy heart. A left atrial abnormality means that the ECG for the heart in question shows that there is something wrong with the electrical signal relating to the heart's left atrium.
The left atrium is one of four chambers in the heart. It receives oxygenated blood from the pulmonary veins, and pumps it into the left ventricle, via the mitral valve.
You need to get the doctor to explain the CAUSE of the anomalous electrical signal.
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Which part is atrial systole in ECG?
identify the portion of the ECG that represents the electrcal activity associated with atrial systole.
Why is the P wave sometimes notched in an ECG due to atrial hypertrophy?
Check into left atrial enlargement. usually a sign of notched P waves
What is the difference between heart rate and ventricular rate?
On an ECG the heart rate will match both ventricular rate and atrial rate if the heart is normal. If people have atrial fibrilation then the ventricular rate will be used on the ECG to work out the rate of the ventricular contraction and vice-versa with ventricular fibrilation. Usually both atrial and ventricular rates match so if the atria contracts at 70 BPM the ventricles will beat at 70 BPM. It is possible for the ECG machine to work out atrial or ventricular rate if needs be. Usually, however, if the ECG machine just displays heart rate then both ventricular and atrial rates match.
Are heart PVC dangerous for me who have heart disease?
it depends in a structurally normal heart pvc's are not dangerous at all however if your heart structure has been altered by a heart attack or you were born with an abnormality there is a small risk of sudden death best to get it checked out on an ecg
What is R-R interval in an ECG?
the time between the two R waves in ECG
Which part is atrial systole in ECG?
identify the portion of the ECG that represents the electrcal activity associated with atrial systole.
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.
Why is the P wave sometimes notched in an ECG due to atrial hypertrophy?
Check into left atrial enlargement. usually a sign of notched P waves
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 is atrial repolarization indicated by?
The atrial repolarization occurs during the QRS complex of the ECG but is obscured by the ventricle depolarization.
What part of the ECG complex represents the atrial depolarization?
The P wave.
Does the atrial rate equal the ventricular rate in the ECG tracing?
yes
What is T Abnormality in High Lateral Leads shown in ECG?
i dont no
In an ecg pattern the p wave is caused by what?
depolarization of atrial muscle fibers
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
What part of the ECG tracing represents the time from the start of the atrial activity to the start of ventricular activity?
QT interval
What part of an ecg do atria contract?
Atrial depolarization occurs at the P wave. The atrial contraction occurs at the peak of the wave at the influx of calcium ions to prolong depolarization.
