12 Questions
What direction does the electricity flow in Lead II?
From the right arm to the left leg
What is the purpose of using gel with ions during an ECG?
To increase conductivity
What does the P wave in an ECG represent?
Depolarization of the atrium
What is the significance of measuring electrolytes in ECG?
To detect electrolyte imbalance
What is bradycardia in the context of ECG?
An unusually slow heart rate
How many electrodes are used in a standard ECG measurement?
12
What is the primary function of an electrocardiogram (ECG)?
To detect heart problems and monitor the heart's health
What is the origin of electricity in the heart?
Sinoatrial node
What is the mechanical function of the left ventricle?
Pumps blood out of the heart
What is the purpose of an ECG if you have chest pain?
To detect blocked or narrowed arteries in the heart
Who developed the ECG?
Einthoven
What is the direction of electricity in Lead I of Einthoven's triangle?
From the right arm to the left arm
This quiz covers the basics of electrocardiography, including what an electrocardiogram is, why it's done, and what it can detect. It's a painless, noninvasive test to help diagnose heart problems.
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