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Doctor insights on: Is A Small Q Wave On An Ecg Significant

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Is a small Q wave on an ECG significant?

Is a small Q wave on an ECG significant?

Probably not: By definition, a "significant" q wave must be > than 40 msec in duration or > than 25-33% (depends on the reference) of the r wave height. Even by that criteria, many electrocardigraphically significant q waves are seen in people with normal cardiac echo's and mri's. ...Read more

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Dr. Cornelius O'leary jr
3 doctors shared insights

Electrocardiogram (Definition)

Electrocardiogram (ecg, ekg) is a print-out of the electrical forces detected by electrodes on the chest wall, as electricity travels through the heart with each heart beat. The electrodes are placed in different positions, and each position "sees" the electrical activity of the heart from its own vantage point. Abnormalities in signal detected at chest surface ...Read more


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What could 'small q waves' on a resting ECG represent?

What could 'small q waves' on a resting ECG represent?

Q waves: Q waves can be abnormal if more than 1/4 the total electrical deflection and at least .04sec. In duration. Smaller q waves than this are within normal parameters. ...Read more

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Is a pointed P wave of 2mm in amplitude still considered right atrial enlargement on an ECG and if not why?

Is a pointed P wave of 2mm in amplitude still considered right atrial enlargement on an ECG and if not why?

And: now a transthoracic echocardiogram will answer the question. It is very easy to evaluate the right atrium with ultrasound and you will have the answer right away. Electrical findings often do not correlate with real images. It is nice to have advanced technology. ...Read more

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Had a ECG which shows a nonspecific T wave abnormality with pulse of 97bpm. I'm on abilify (aripiprazole). What does the result mean? Pic of ECG in my files.

Talk to your doctor: The reason the study says, "nonspecific T-wave abnormality" is because the reader doesn't have enough information supplied to them by the referring provider so as to make a more SPECIFIC comment on what they're seeing...which is some sort of T-wave abnormality. Abnormalities can be due to NORMAL variants and therefore, of no consequence, or meaningful based on the clinical situation. ...Read more

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What is a t wave abnormality on an ecg?

What is a t wave abnormality on an ecg?

Ecg: T waves represent the repolarization of the ventricles. The morphology of the wave is fairly uniform so when its vector is in the wrong direction we consider the t wave abnormal. ...Read more

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What is a t-wave on an ECG?

What is a t-wave on an ECG?

ECG: the T wave follows the QRS and represents repolarization of the ventricles j ...Read more

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Are q and t waves inversion on EKG an indication of a past heart attack?

Are q and t waves inversion on EKG an indication of a past heart attack?

Possibly: Abnormal ekg's (ecg's) are one diagnostic criteria for prior heart attacks. However, these changes can also be seen in hypertension, cardiomyopathies, pulmonary disease, and even in normal hearts. ...Read more

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What is a delta wave on an ecg?

Delta wave: Reflects abnormal conduction potentially risking rhythm disturbances;needs formal evaluation by cardiology electrophysiology ...Read more

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Do q and t waves inversion on EKG always an indication of a past heart attack?

Do q and t waves inversion on EKG always an indication of a past heart attack?

Common: But not perfect p, q, rs, t u are all ekg waves the total patterns can give us rate rhythm, and some damage information and hypertrophy or enlargement information. Need the whole thing and sometimes echo, and chemical data. ...Read more

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What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

What does a notched R wave in lead 3 on ECG represent? Is this significant in a 20 year old male with structurally normal heart?

Probably Normal: Without viewing your EKG and knowing more about the characteristics of the R-wave (QRS duration, etc) it is difficult to say for certain but most likely represents a nonspecific intraventricular conduction delay. In an otherwise healthy asymptomatic 20 year old without structural heart disease it is an interesting incidental finding of no clinical significance. ...Read more

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What does a Q wave on a stress test represent?

What does a Q wave on a stress test represent?

Heart Damage: A "q wave" is seen on an electrocardiogram (ekg) several of which are recorded during a stress test. Q waves may be very small and not carry much significance or may be larger and suggest that heart damage by a heart attack has occured at some point in time. Further testing and imaging of the heart may be required to determine if the q wave is significant. ...Read more

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With predominantly sinus rhythm, is just a short cycle of 2nd degree AV block during a 48h holter ECG recording considered serious?

With predominantly sinus rhythm, is just a short cycle of 2nd degree AV block during a 48h holter ECG recording considered serious?

Depends: It depends on what type of 2nd degree AV block it was. There is usually 2 types and one of those types require permanent pacemaker. Please see a cardiologist asap. ...Read more

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What is the significance of a non Q wave heart attack?

EKG finding: A q wave is a finding on the electrocardiogram seen after a completed myocardial infarction (heart attack). In some patients with heart attack, the electrocardiogram will demonstrated q-wave. In other patients, a q wave will not develop. In general, q wave myocardial infarctions are larger and associated with st elevation in the early phase of the heart attack. ...Read more

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What is a nonspecific intraventricular block mean shown on an ekg?

An electrical delay: Just an anomaly in the electrical conduction system. It is a very common finding. ...Read more

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Which wave on an ECG shows low potassium? How would the wave be abnormal?

Which wave on an ECG shows low potassium? How would the wave be abnormal?

T and U: Some electrocardiographic findings associated with hypokalemia include flattened or inverted t waves, a u wave, st depression and a wide pr interval. ...Read more

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What does a Q wave mean on a ekg?

EKG : The ekg has waves with amplitude and direction. A q wave reflects a lack of electrical force in a certain direction. This lack of force has some correlation when a change in pattern with a loss of muscle as is seen in heart damage like a heart attack. ...Read more

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What would abnormal septal motion on an echo and poor R wave progression on an ECG for the same patient suggest?

Several things: Pulmonary hypertension in a young woman. Previous anteroseptal myocardial infarction in an older person. LBBB (left bundle branch block) if present, would account for both. Previous heart surgery could do this. A perfusion nuclear study would help to clarify this. ...Read more

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Results of a stress test it came back with a v small apical infarction with some peri-infarct ischemia noted what does that mean?

Results of a stress test it came back with a v small apical infarction with some peri-infarct ischemia noted what does that mean?

Question? Consult!: These little boxes are not good for answering specific patient case problems. Consider a cardiology consultation here on HealthTap. The kind of consult where you ask for help within the next 24 hours works particularly well for a complex case because it enables emailing back and forth with the details. ...Read more