Week 10 Flashcards
What artery feeds the Septal region of the heart?
Left Anterior decending artery
What artery/ies feeds the anterior region of the heart?
- Left Anterior decending artery
- Left circumflex
What artery feeds the Inferior region of the heart?
Right coronary artery
What artery feeds the High lateral region of the heart?
- Left circumflex
What region of the ECG is represented by the aorta?
aVR
What is bigeminy?
Unifocal PVC every second complex
What is trigeminy?
Unifocal PVC every third complex
If your QRS is positive in Lead 1 and aVF, what ECG axis is it?
NOT ON EXAM
Normal
If your QRS is positive in Lead 1 and Negative in Lead aVF, what ECG axis is it?
NOT ON EXAM
Possible Left axis deviation
If your QRS is negative in Lead 1 and positive in Lead aVF, what ECG axis is it?
NOT ON EXAM
Possible Right axis deviation
If your QRS is negative in Lead 1 and negative in Lead aVF, what ECG axis is it?
NOT ON EXAM
Extreme axis
What is the normal electrical conduction of SA node
60-100
What is the normal electrical conduction of atrial cells
55- 60
What is the normal electrical conduction of AV node
45-50
What is the normal electrical conduction of HIS bundle
40 - 45
What is the normal electrical conduction of Bundle branch
40 -45
What is the normal electrical conduction of Purkinje cells
20 - 40
What leads to you use to determine a right bundle branch block?
V1 and V6
What happens in V1 with a RBBB?
rSR complex… instead of QRS
r wave first then S then another larger R
What happens in V6 with a RBBB?
qRs
curve in the S
WHat are the ecg vaoues to determien right bundle branch block?
- P wave
- QRS
- T wave
- Leads 1, avl, V6
- V1 & v2
- V6
- 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
What leads to you use to determine a right bundle branch block?
V1 and V6
What happens in V1 with a LBBB?
rS complex.. deep S wave small r wave no Q
What happens in V6 with a LBBB?
Bunny ears - RR wave
WHat are the ecg vaoues to determien left bundle branch block?
- P wave
- QRS
- T wave
- Leads 1, avl, V6
- V1 & v2
- V6
- 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
