0.04 - 0.12 sec (one small box - 3 small boxes)
QRS complex
QRS-- A pattern seen in an electrocardiogram that indicates the pulses in a heart beat and their duration. Variations from a normal QRS pattern indicate heart disease.
The P wave represents atrial depolarization (they contract). In a normal EKG, the P-wave precedes the QRS complex. It looks like a small bump upwards from the baseline.
In atrial fibrillation (a-fib), the EKG strip will show irregular and rapid heartbeats with no distinct P waves, while a normal EKG strip will show regular and steady heartbeats with clear P waves before each QRS complex.
QRS
Nothing, they are equivalent.
Okay so an EKG show the electrical impulse that travels through the heart. What I mean is EKG don't show contraction. However the QRS complex represent ventricular depolarization, which signals ventricular contraction
does a normal qrs complex measures <.12
what does isoelectric line represent
vi
An abnormal ECG is when the electrocardiogram shows results outside the norm. These results are usually indicative of problems in the heart, such as enlargement, higher potassium or sodium levels, damage, and inflammation.
by largest, I'll assume tallest. the tallest wave on an EKG is called the QRS complex and represents the contraction of the left ventricle. btw tallest could also mean lowest depending on the particular ekg lead.