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12 Lead - Chapter 3

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1.
1 point
An electrical lead is like a camera taking a picture of the electrical axis from its particular vantage point. A 12-lead ECG is like a picture album representing the 'shots' taken by the 12 individual leads in a systematic format.
2.
1 point
The Hexaxial system gives rise to which leads?
3.
1 point
We forget 90% of information learned through memorization
4.
1 point
This question is TRUE. To create the additional 3 leads in the Hexaxial system (aVF, aVL, aVR) the computer AUGMENTS (hence the a) the voltage of I, II, III. Augmented Voltage Left, Augmented Voltage Right and Augmented Voltage Foot.
5.
1 point
What is the purpose of a vector?
6.
1 point
If an electrical signal is moving away from the electrode it is seen as a _________ ________.
7.
1 point
Lead I views the heart from Left Arm to Right Arm
8.
1 point
In the Hexaxial system the leads are separated by how many degrees?
9.
1 point
If Vector A is positive 2 and Vector B is Positive 2 what is the net vector
10.
1 point
If Vector A is positive 3 and Vector B is negative 1 what is the net vector?
11.
1 point
ST elevation in leads V1 and V2 would correspond to an MI in which area of the heart?
12.
1 point
Precordial Leads do not have to be placed exactly.
13.
1 point
The precordial leads create a coronal plane of the heart?
14.
1 point
An MI affecting the inferior portion of the heart would show ST Elevation in which leads?
15.
1 point
If vector A is positive 2 and vector B is negative 3 what is the net vector?
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