Transcript
Electrocardiogram (ECG) Prepared by Joycelyn Parazo--Reyes, RN MAN Parazo
Electrocardiogram
An electrocardiogram (ECG or EKG,, abbreviated from the German EKG Elektrokardiogramm) is a noninvasive transthoracic graphic produced by an electrocardiograph,, which records electrocardiograph the electrical activity of the heart over time
Electrocardiogram
An electrocardiogram (ECG or EKG,, abbreviated from the German EKG Elektrokardiogramm) is a noninvasive transthoracic graphic produced by an electrocardiograph,, which records electrocardiograph the electrical activity of the heart over time
is a test that checks for problems with the electrical activity of your heart. graph produced electrocardiograph
by
an
records the electrical activity of the heart over time
provides various waves and normal vectors of repolarization and repolarization of the myocardia does not directly assess the contractility of the heart, but gives a rough indication of increased or decreased contractility
Its name is made of different parts: electro, because it is related to electrical activity cardio, Greek for heart gram, a Greek root meaning "to write"
Depolarization
It is the electrical activation of heart muscle cells is cause by an electrical process Contraction of the atrial muscle cells and pumping of blood from the atria to the ventricles immediately follow atrial activation or depolarization
Repolarization
Electrical reverse process Immediately after depolarization of ventricular muscle cells, repolarization occurs
Anatomy and Physiology
The heart is a muscular pump made up of four chambers . The two upper chambers are called atria, and the two lower chambers are called ventricles. A natural electrical system causes the heart muscle to contract and pump blood through the heart to the lungs and the rest of the body.
