ECG and Blood Pressure

ECG is a reading that shows

• the activity of heart

• the electrical activity of cardiac muscle

• the systole and diastole of cardiac muscle

• the initiation of heartbeat

The correct sequence of the three events in ECG

• P wave , T wave , QRS complex

• QRS complex , P wave , T wave

• T wave , QRS complex , P wave

• P wave, QRS complex, T wave

P wave is

• Repolarization of atria

• Repolarization of ventricles

• Depolarization of atria

• Depolarization of ventricles

T wave is

• Repolarization of atria

• Repolarization of ventricles

• Repolarization of ventricles and atria

• Depolarization of atria and ventricles

QRS complex is

• Repolarization of atria

• Repolarization of ventricles

• Depolarization of atria

• Depolarization of ventricles

Which event is NOT correct during P wave

• SA node generate impulse and transmit it to walls of atria

• Atrial depolarization

• Atria contract

• Ventricular depolarization

Which one is represent P wave

• A

• B

• C

• E

Which one is represent T wave

• A

• B

• C

• E

Which one is represent QRS complex

• A

• B

• C

• E

By relating events in ECG with phases in cardiac cycle, at which event the AV valve will be closed?

• A

• B

• C

• E