Cardiology Basics Quiz

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Questions and Answers

What does the P wave in an ECG represent?

Ventricular systole
Atrial systole (correct)
Ventricular diastole
Resting state of the heart

Which component of the ECG corresponds to ventricular systole?

P wave
T wave
U wave
QRS complex (correct)

What would indicate a fast heart rate on an ECG?

>100 bpm (correct)
<60 bpm
70 bpm
60-100 bpm

How is the heart's electrical activity monitored by an ECG?

<p>By measuring the current at the skin's surface (C)</p> Signup and view all the answers

Flashcards

What is an ECG?

An instrument that measures the electrical activity of the heart using electrodes placed on the skin surface.

What does the P wave represent?

The P wave represents atrial contraction, or atrial systole. It precedes the QRS complex and corresponds to the electrical depolarization of the atria.

What represents ventricular systole?

The QRS complex represents the electrical activity associated with ventricular contraction, or ventricular systole. This is the largest wave on the ECG.

What does the T wave represent?

The T wave reflects the repolarization of the ventricles, which occurs just after ventricular contraction and is represented by a large, smooth, rounded wave.

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