ECG

Question 1

What does an ECG record

Answer 1

electrical activity of the heart

Question 2

What is the purpose of the coronary sinus

Answer 2

blood returning from the coronary arteries and veins into the right atrium

Question 3

What is AF and what does it entail

Answer 3

Atrial Fibrillation and this is when the atria do not contract together

Question 4

When do the atria relax ( repolarise)

Answer 4

When the ventricles contract ( depolarisation )

Question 5

What does the P wave represent

Answer 5

Atrial depolarization ( contraction )

Question 6

What does the QRS wave represent

Answer 6

ventricular depolarization ( contraction )

Question 7

What does the T wave represent

Answer 7

ventricular repolarization ( relax )

Question 8

What does the QRS complex represent

Answer 8

time is taken for excitation through the ventricles (0.12)

Question 9

Where does V1 get placed

Answer 9

4th intercostal space on the right sternal edge

Question 10

Where does V2 get placed

Answer 10

4th intercostal space on the left sternal edge

Question 11

Where does V4 get placed

Answer 11

midclavicular line 5th intercostal space

Question 12

Where does V3 get placed

Answer 12

between V2 and V4

Question 13

Where does V5 get placed

Answer 13

Anterior Axillary line 5th intercostal space

Question 14

Where does V6 get placed

Answer 14

Mid Axillary line 6th intercostal space

Question 15

What lead does V1 and V2 record

Answer 15

Right ventricle

Question 16

What lead does V3 and V4 record

Answer 16

Ventricular septum

Question 17

What lead does V5 and V6 record

Answer 17

Anterior and lateral wall left ventricle

Question 18

What does the aVR lead pick up

Answer 18

right atrium

Question 19

What does the aVL lead pick up

Answer 19

left lateral part of heart

Question 20

What does the aVF lead pick up

Answer 20

inferior aspect of heart

Question 21

What does Lead I and II look at

Answer 21

Left lateral

Question 22

What does Lead III look at

Answer 22

Inferior part of heart

Question 23

What are the limb leads

Answer 23

bipolar

Question 24

What is sinus arrhythmia vs sinus rhythm vs atrial fibrillation

Answer 24

Sinus rhythm ( normal rhythm of heart from SAN) regular 
sinus arrhythmia ( not normal rhythm from SAN ) irregular regular 
irregular irregular

Question 25

What is typical of Atrial Fibrillation

Answer 25

``` No P waves on ECG QRS complex of normal shape Irregular irregular pulse Atria not beating in harmony The danger of clot-forming due to stagnant blood in ventricles forming a clot ```

Question 26

What is a common cause of Atrial Fibrillation

Answer 26

myocardial ischemia and myocardial infarction

Question 27

What is random up and down hills on an ECG and is it bad and what could it be

Answer 27

Ventricular Fibrillation and very bad ( crash team )

Question 28

What would a completely flat line be

Answer 28

plug has come off the wall

Question 29

What is asystole

Answer 29

very gradual lines and pretty much a cardiac arrest

Question 30

What does a defibrillator do

Answer 30

Stops the heart to hope pacemaker cells can regain control

Question 31

What is the first LUB sound caused by

Answer 31

atrioventricular valves closing (mitral and tricuspid )

Question 32

What is the DUB sound caused by

Answer 32

aortic and pulmonary valves close

Question 33

Where do all heart valves lie behind

Answer 33

sternum

Question 34

Where are the valves the loudest

Answer 34

in the direction of blood flow

Question 35

Where do you listen to the aortic valve

Answer 35

RIGHT 2nd intercostal space at sternal edge

Question 36

Where do you listen to the pulmonary valve

Answer 36

LEFT 2nd intercostal space at sternal edge

Question 37

Where do you listen to the tricuspid valve

Answer 37

4th sternal edge Left or Right

Question 38

Where do you listen to the bicuspid valve

Answer 38

5th intercostal space mid clavicular line