Which term stands for recording of the heart's electrical activity?

Which term stands for recording of the heart's electrical activity?

• A. Electrocardiogram
• B. Endocarditis
• C. Erythema
• D. Electrocadiogram

Answer: (D)

The main idea here is how we name the test that records the heart’s electrical activity. That recording is called an electrocardiogram. The process of obtaining it is electrocardiography, and the machine or device that creates the tracing is an electrocardiograph. The word breaks down as electro- (electric), cardio- (heart), and -gram (something written or recorded), which helps you remember why this term is used. The other terms refer to different concepts—endocarditis is an infection of the heart’s inner lining, erythema is skin redness—and the form electrocadiogram isn’t the standard term used in medicine. So, electrocardiogram is the correct term for the recording.

The main idea here is how we name the test that records the heart’s electrical activity. That recording is called an electrocardiogram. The process of obtaining it is electrocardiography, and the machine or device that creates the tracing is an electrocardiograph. The word breaks down as electro- (electric), cardio- (heart), and -gram (something written or recorded), which helps you remember why this term is used. The other terms refer to different concepts—endocarditis is an infection of the heart’s inner lining, erythema is skin redness—and the form electrocadiogram isn’t the standard term used in medicine. So, electrocardiogram is the correct term for the recording.