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The ECG sign of subendocardial ischemia is ST segment depression. Note that ECG is used more now that EKG.
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Difference between myocardial ischemia and aortic dissection?
in myocadial ischemia, pain radiate to jaw, neck,shoulder,arm wheras in aortic dissection pain radiate to back, between scapulae there is differense between pulse rate of both arms and leg depending on ecg changes
An enlarged R wave on an ECG would indicate?
< A myocardial infarction.
What is the most common reason for alarm to sound during ecg?
myocardial infarction
What is the composite recording of all nodal and myocardial action potentials?
Electrocardiogram (ECG or EKG)
ECG MachineECG Machine is the process of producing an electrocardiogram( ECG or EKG), a recording of the heart's electrical activity.Call us 24/7 on 7303179967?
ECG Machine is the process of producing an electrocardiogram( ECG or EKG), a recording of the heart's electrical activity. It's an electrogram of the heart which is a graph of voltage versus time of the electrical activity of the heart using electrodes placed on the skin. These electrodes detect the small electrical changes that are a consequence of cardiac muscle depolarization followed by repolarization during each cardiac cycle( heartbeat). Changes in the normal ECG pattern occur in numerous cardiac abnormalities, including cardiac rhythm disturbances( such as atrial fibrillation and ventricular tachycardia), inadequate coronary artery blood flow( such as myocardial ischemia and myocardial infarction), and electrolyte disturbances( such as hypokalemia and hyperkalemia).
Differentiate myocardial ischemia from myocardial infarction?
Ischaemia is the lack of blood supply to a tissue which start anaerobic respiratory mechanisms. Infarction is cell death through apoptosis resulting from prolonged or severe ischaemia. Clinicaly myocardial infarction will be more painful and is unrelieved by rest. On ECG infarction will reult in ST segment elevation where ischaemia will result in ST segment depresion (unless it is a posterior MI!). In MI there will also be raised biochemical markers hours later such as creatine kinase and troponin.
What is the definition of recent myocardial infarction?
recent MI is after the 24hrs from the symptoms onset with Q wave on the ECG
What does t inversion v3 show on ecg?
T inversion in lead V3 on an ECG may indicate various conditions such as myocardial ischemia, ventricular strain, or electrolyte imbalances. It is important to consider the clinical context and the overall ECG findings when interpreting T-wave inversions in lead V3. Additional testing and evaluation may be necessary to determine the underlying cause.
What does low oxygen in the blood look like in a ECG?
An ECG won't show oxygen levels in the blood - it simply records the patients heartbeat.
What does a heart attack look like on a 12 lead ecg?
ST elevation
Does ST in medical terms stand for sub type?
In cardiology ST refers to the ST segment of a cardiac cycle which when elevated on an ECG indicates a heart attack (myocardial infarction)
Which test is useful as evidence to myocardial infraction?
The ECG is the most useful test to determine whether a myocardial infarction has occurred. The electrocardiogram traces the electrical signals in the heart.
