Electrocardiogram -ECG or EKG

 

 

 

 

 

 

An electrocardiogram — abbreviated as EKG or ECG — is a test that measures the electrical activity of the heartbeat. With each beat, an electrical impulse (or “wave”) travels through the heart. This wave causes the muscle to squeeze and pump blood from the heart. A normal heartbeat on ECG will show the timing of the top and lower chambers.

The right and left atria or upper chambers make the first wave called a “P wave” — following a flat line when the electrical impulse goes to the bottom chambers. The right and left bottom chambers or ventricles make the next wave called a “QRS complex.” The final wave or “T wave” represents electrical recovery or return to a resting state for the ventricles.
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Electrocardiography (ECG or EKG[a]) is the process of recording the electrical activity of the heart over a period of time using electrodes placed on the skin. These electrodes detect the tiny electrical changes on the skin that arise from the heart muscle’s electrophysiologic pattern of depolarizing and repolarizing during each heartbeat. It is a very commonly performed cardiology test…….
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心電描記術(Electrocardiography,ECG或者EKG)是一種經胸腔的以時間為單位記錄心臟的電生理活動,並通過皮膚上的電極捕捉並記錄下來的診療技術。[1]這是一種無創性的記錄方式。Electrocardiography的詞源來自於三個希臘單詞:「electro」,因為和電生理活動有關,「cardio」,希臘語「心臟」,還有「graph」,一個希臘語的詞根,意思為:「描記」。…..
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