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What does myocardial ischemia look like on an ECG?
The ECG sign of subendocardial ischemia is ST segment depression. Note that ECG is used more now that EKG.
What is baseline in ECG?
Baseline in an ECG refers to the flat line that represents the absence of electrical activity in the heart. It serves as a reference point for the peaks and valleys of the ECG waveform. Any deviation from the baseline may indicate abnormal electrical activity in the heart.
The portion of the ECG tracing between the QRS complex and the T wave is called the?
ST segment
Which components of ECG are normally measured along the isoelectric line?
In a normal ECG, the components measured along the isoelectric line include the baseline segment between heartbeats, specifically the PR segment and ST segment. The PR segment reflects the time taken for electrical impulses to travel from the atria to the ventricles, while the ST segment represents the period between ventricular depolarization and repolarization. Both segments are crucial for assessing the heart's electrical activity and can indicate various cardiac conditions when deviating from the isoelectric line.
What does a segment on an ECG tracing indicate?
A segment on an ECG tracing represents a specific period of electrical activity in the heart, typically reflecting the time between different phases of the heart's electrical cycle. For example, the PR segment indicates the time it takes for electrical impulses to travel from the atria to the ventricles, while the ST segment represents the period between ventricular depolarization and repolarization. Analyzing these segments helps diagnose various cardiac conditions and assess overall heart health.
What does the medical abbreviation NSST mean?
NSST on an ECG stands for non-specific ST, and is usually followed by the word "changes." Non-specific ST changes are alterations in the shape, height, or slope of the ST segment in the ECG that don't point to a particular diagnosis.
What are the criteria in ECG to diagnose inferior MI?
To diagnose an inferior myocardial infarction (MI) using an ECG, the key criteria include the presence of ST-segment elevation in leads II, III, and aVF, indicating inferior wall involvement. Additionally, reciprocal changes may be observed in the lateral leads (I and aVL) as ST-segment depression. The identification of Q waves in these inferior leads can also support the diagnosis of an inferior MI, especially if present in conjunction with the ST-segment changes.
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)
What might occur in an ECG as a result of an acute heart attack?
Usually ST segment elevation... but it doesn HAVE to occur... many people have non st segment MI's (myocardial infarctions) where the only indicator is abnormal blood labs like high CPK or troponins
What is the full form of ecg scan?
ECG stands for ElectroCardioGram
When does a person suffers from ECG?
Never. An ECG is a test, not an illness or disease.
An ECG provides imformation about what?
An ECG provides information about the wearer of the ECG's heartrate and rhythm of the heart. It provides information about wether it is normal or abnormal.
