ECG Flashcards
1
Q
How many electrodes are placed on the chest?
A
6
2
Q
How many electrodes are placed on the limbs?
A
4
3
Q
What does an ECG show?
A
The change in voltage over time
4
Q
What does each small square represent?
A
40 ms
5
Q
What does each big square represent?
A
0.2s
6
Q
Where does lead 1 run from?
A
Right arm to the left arm
7
Q
Where does lead 2 run from?
A
Right arm to left leg
8
Q
Where does lead 3 run from?
A
Left arm to left leg
9
Q
What do the bipolar leads do?
A
Register voltage between 2 electrodes
10
Q
Where are the bipolar leads?
A
Between the 3 limbs
11
Q
What do unipolar leads do?
A
Register activity in the heart directed towards the electrode
12
Q
How many unipolar leads are there?
A
3 arm leads and 6 chest leads
13
Q
Where are the arm electrodes placed?
A
The inner wrist
14
Q
Where are the leg electrodes placed?
A
The inner ankle
