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Lead I: 0 and +/- 180

Lead aVL: -30 and +150

Lead III: -60 and +120

Lead aVF: -90 and +90

Lead II: -120 and +60

Lead aVR: -150 and +30

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Related Questions

What are the key differences between a 3-lead and a 12-lead ECG and how do they impact the accuracy of cardiac monitoring?

A 3-lead ECG records electrical activity from three points on the body, while a 12-lead ECG records from 12 points. The 12-lead ECG provides a more comprehensive view of the heart's electrical activity, allowing for better detection of abnormalities. This increased number of leads improves the accuracy of cardiac monitoring by providing more detailed information about the heart's function and potential issues.


Can you explain how to interpret a 12-lead ECG?

Interpreting a 12-lead ECG involves analyzing the electrical activity of the heart from different angles. Each lead provides information on a specific area of the heart, helping to identify abnormalities such as arrhythmias, ischemia, or infarction. By examining the waveforms, intervals, and segments in each lead, healthcare professionals can diagnose and monitor various heart conditions.


What is the abbreviation for ecg lead v?

vertical


How many lead wires are used to obtain a 12-lead ECG tracing?

FOUR


What is the cause for smeared trace of ECG machine?

LEAD DISPLACEMENT


What does a heart attack look like on a 12 lead ecg?

ST elevation


Why are the waves in the same direction in an ECG?

The wave direction indicated whether the electrical impulse from the heart is going towards or away from the ECG lead that is being studied.


Why is the T wave positive in the ECG?

The T wave is positive in an ECG due to the direction and charge. This positive deflection occurs after each QRS complex.


What confounding variables can interfere with an ECG?

jewlrey, medications, movement, lead placement, metal buttons,


What are the effects of adrenaline on ECG?

Adrenaline increases heart rate and conduction velocity in the heart, which can lead to changes in the ECG. These changes may include a shortening of the PR interval, widening of the QRS complex, and an increase in heart rate.


What unit do you measure the amplitude of an ECG wave?

The amplitude of an ECG wave is typically measured in millimeters (mm) on the vertical axis of the ECG graph. It represents the voltage or electrical activity of the heart muscle during each phase of the cardiac cycle.


What is long lead in ECG?

These leads help healthcare professionals to find any heart rhythm issues as they are occurring. It is important to place this lead correctly on a limb.