Electrocardiogram (ECG) Quiz

What is the normal range for resting heart rate in beats per minute (bpm)?

• 100 to 140 bpm

• 40 to 60 bpm

• 80 to 120 bpm

• 60 to 100 bpm

What is the origin of the normal electrical activation pattern in the heart?

• Atrioventricular node

• Purkinje fibers

• Sinoatrial node

• Bundle of His

What is the normal range for the QRS axis in degrees?

• -90° to 0°

• -30° to +90°

• +90° to +180°

• 0° to +180°

Which wave represents atrial depolarization?

• T wave

• Q wave

• P wave

• R wave

What is the normal duration range for the PR interval in milliseconds?

• 200 to 240 ms

• 120 to 200 ms

• 100 to 160 ms

• 60 to 100 ms

Which lead typically shows a negative T wave in a normal ECG?

• D1

• D2

• aVR

• V6

Qual o eixo do QRS do ECG apresentado

• Entre +105 e +120 graus

• Entre +75 e +90

• Entre -30 e -45

• Entre +45 e +60