What is a normal ECG look like?
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Amelia Patel
Studied at the University of Oxford, Lives in Oxford, UK.
As a medical professional with expertise in cardiology, I can tell you that a normal ECG, or electrocardiogram, is a graphic representation of the electrical activity of the heart. It is typically characterized by several key features:
1. Rate: A normal heart rate is between 60 and 100 beats per minute (bpm) for adults at rest.
2. Rhythm: The heartbeats should be regular, with each beat following the previous one at consistent intervals.
3. P Wave: This represents atrial depolarization and should be smooth and rounded, without notches or irregularities.
4. PR Interval: This is the time from the start of the P wave to the start of the QRS complex. A normal PR interval is 0.12 to 0.20 seconds.
5. QRS Complex: This represents ventricular depolarization and should be a single, broad wave without splits or extra peaks. The duration should be less than 0.12 seconds.
6. QT Interval: This is the time from the start of the QRS complex to the end of the T wave. It varies with heart rate but is typically around 0.36 to 0.44 seconds.
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T Wave: This represents ventricular repolarization and should be smooth and rounded, with a direction opposite to the QRS complex.
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Axis: The average electrical axis of the heart's depolarization should be between -30 and +90 degrees.
An ECG is read across what are known as leads, which are views of the heart from different angles. Each lead can provide different information about the heart's electrical activity.
1. Rate: A normal heart rate is between 60 and 100 beats per minute (bpm) for adults at rest.
2. Rhythm: The heartbeats should be regular, with each beat following the previous one at consistent intervals.
3. P Wave: This represents atrial depolarization and should be smooth and rounded, without notches or irregularities.
4. PR Interval: This is the time from the start of the P wave to the start of the QRS complex. A normal PR interval is 0.12 to 0.20 seconds.
5. QRS Complex: This represents ventricular depolarization and should be a single, broad wave without splits or extra peaks. The duration should be less than 0.12 seconds.
6. QT Interval: This is the time from the start of the QRS complex to the end of the T wave. It varies with heart rate but is typically around 0.36 to 0.44 seconds.
7.
T Wave: This represents ventricular repolarization and should be smooth and rounded, with a direction opposite to the QRS complex.
8.
Axis: The average electrical axis of the heart's depolarization should be between -30 and +90 degrees.
An ECG is read across what are known as leads, which are views of the heart from different angles. Each lead can provide different information about the heart's electrical activity.
Studied at the University of British Columbia, Lives in Vancouver, Canada.
A "normal" EKG is one that shows what is known as sinus rhythm. Sinus rhythm may look like a lot of little bumps, but each relays an important action in the heart. An EKG displays P Waves, T Waves, and the QRS Complex. ... P Waves: P waves are the first "bump" on the EKG.
2017-3-30
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Ethan Campbell
QuesHub.com delivers expert answers and knowledge to you.
A "normal" EKG is one that shows what is known as sinus rhythm. Sinus rhythm may look like a lot of little bumps, but each relays an important action in the heart. An EKG displays P Waves, T Waves, and the QRS Complex. ... P Waves: P waves are the first "bump" on the EKG.
