Intro to ECG Flashcards
1
Q
What does ECG stand for and what is it’s function?
A
Electrocardiogram
Function- records the electrical activity of the heart from the skin
2
Q
What is the difference between unipolar and bipolar leads?
A
Unipolar: (V1-V6)
- all chest leads are unipolar
- measures the potential variation at a single point
Bipolar: (leads I, II and III)
- half limb leads are unipolar and other half are bipolar
- measures the potential difference between 2 points
3
Q
What are ECG leads?
A
ECG leads are electrical vectors and not the wires attached to the patient.
4
Q
What plane do chest and limb leads provide?
A
Chest leads provide the transverse plane of the heart
Limb leads provide the coronal plane of the heart
5
Q
What overall plan do the ECG leads provide?
A
ECG leads give a cross-sectional view of the heart
6
Q
How to determine MI from an ECG?
A
- Peaked T waves
- ST elevation
7
Q
How to determine acute coronary occlusion from an ECG?
A
ST elevation
8
Q
What will bundle branch block look like on an ECG?
A
broad QRS
