P waves represent the atrial depolarization. QRS complex represent the ventricular depolarization. T waves represent the ventricular repolarization.
ST segment
The horizontal part of a tracing on an ECG is called the baseline. It represents the period when the heart is not actively depolarizing or repolarizing, showing the electrical activity at rest.
Causes for poor ECG tracing can be from the patient moving or interferences from electrical appliances in the room: cell phones, a lamp plug in etc
Paperclips
yes
The ECG wave tracing represents the electrical activity of the heart as it beats. It shows the depolarization and repolarization of the heart muscle, which corresponds to specific events in the cardiac cycle. The different waves and intervals on the ECG tracing provide information about the heart's rhythm, rate, and potential abnormalities.
the repolarization of the atria is hidden by the QRS wave
yes
Why is it important that the eck tracing be handled carefully and not be allow to smear or be folded in any way
P wave
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.
In an ECG reading for atrial fibrillation (AFib), there will be irregular and rapid electrical signals in the atria, leading to a chaotic heart rhythm. This is shown as erratic waves on the ECG tracing. In a normal ECG reading, the heart's electrical signals follow a regular pattern, resulting in a steady and organized heart rhythm with distinct waves on the ECG tracing.