Week 10

Question 1

What artery feeds the Septal region of the heart?

Answer 1

Left Anterior decending artery

Question 2

What artery/ies feeds the anterior region of the heart?

Answer 2

• Left Anterior decending artery

- Left circumflex

Question 3

What artery feeds the Inferior region of the heart?

Answer 3

Right coronary artery

Question 4

What artery feeds the High lateral region of the heart?

Answer 4

• Left circumflex

Question 5

What region of the ECG is represented by the aorta?

Answer 5

aVR

Question 6

What is bigeminy?

Answer 6

Unifocal PVC every second complex

Question 7

What is trigeminy?

Answer 7

Unifocal PVC every third complex

Question 8

If your QRS is positive in Lead 1 and aVF, what ECG axis is it?

NOT ON EXAM

Answer 8

Normal

Question 9

If your QRS is positive in Lead 1 and Negative in Lead aVF, what ECG axis is it?

NOT ON EXAM

Answer 9

Possible Left axis deviation

Question 10

If your QRS is negative in Lead 1 and positive in Lead aVF, what ECG axis is it?

NOT ON EXAM

Answer 10

Possible Right axis deviation

Question 11

If your QRS is negative in Lead 1 and negative in Lead aVF, what ECG axis is it?

NOT ON EXAM

Answer 11

Extreme axis

Question 12

What is the normal electrical conduction of SA node

Answer 12

60-100

Question 13

What is the normal electrical conduction of atrial cells

Answer 13

55- 60

Question 14

What is the normal electrical conduction of AV node

Answer 14

45-50

Question 15

What is the normal electrical conduction of HIS bundle

Answer 15

40 - 45

Question 16

What is the normal electrical conduction of Bundle branch

Answer 16

40 -45

Question 17

What is the normal electrical conduction of Purkinje cells

Answer 17

20 - 40

Question 18

What leads to you use to determine a right bundle branch block?

Answer 18

V1 and V6

Question 19

What happens in V1 with a RBBB?

Answer 19

rSR complex… instead of QRS

r wave first then S then another larger R

Question 20

What happens in V6 with a RBBB?

Answer 20

qRs

curve in the S

Question 21

WHat are the ecg vaoues to determien right bundle branch block?

• P wave
• QRS
• T wave
• Leads 1, avl, V6
• V1 & v2
• V6

Answer 21

• p wave - underlying rhythm
• p-r interval - underlying rhythm
• QRS - wide >0.12
• T wave - opposite polarity to QRS in V1 & V2
• Slurred S with greater duration than QRS in Leads 1, aVL and V6
• Lead V1 & V2 - triphasic rSR complex
• Lead V6 - triphasic qRS complex

Question 22

What leads to you use to determine a right bundle branch block?

Answer 22

V1 and V6

Question 23

What happens in V1 with a LBBB?

Answer 23

rS complex.. deep S wave small r wave no Q

Question 24

What happens in V6 with a LBBB?

Answer 24

Bunny ears - RR wave

Question 25

WHat are the ecg vaoues to determien left bundle branch block?

• P wave
• QRS
• T wave
• Leads 1, avl, V6
• V1 & v2
• V6

Answer 25

• p wave - underlying rhythm
• p-r interval - underlying rhythm
• QRS - wide >0.12
• T wave - opposite polarity to QRS in V1 & V2
• wide R wave with plateau or notch, no S wave, monomorphic QRS in Leads 1, aVL and V6
• Lead V1 QS or rS, deep S waves, monomorphic QRS
• ST segment depression in leads with positive QRS complex
• T waves - opposite polarity to QRS