Electrocardiograms

Question 1

What is a P-wave

Answer 1

Represents the depolarisation of atria as impulse passes from SAN to AVN

Question 2

What is the QRS complex

Answer 2

Represents the depolarisation of ventricles as impulse passes from bundle of his to purkinje fibres

Question 3

What is a T-wave

Answer 3

Represents the re polarisation of ventricles

Question 4

What happens after depolarisation of atria

Answer 4

Impulse is held at the AVN before moving down bundle of his

Question 5

What does it mean when pQRST cycles are too close together

Answer 5

There is a high HR sinus arrhythmia meaning HR is too fast

Question 6

What is tachycardia

Answer 6

A heart condition where the resting heart rate is over 100bpm

Question 7

What is bradycardia

Answer 7

When the HR is abnormally slow (under 60Bpm) in an ECG the PQRST cycles will be very spread out

Question 8

What is an ecoptic heartbeat

Answer 8

Irregular PQRST cycles

Question 9

Atrial fibrillation

Answer 9

When there is a lack of coordinates atrial depolarisation
There will be no P wave on an ECG

Question 10

What is ventricular fibrillation

Answer 10

Lack of coordinated ventricular