12 Lead ECG

Take the 12 Lead ECG Quiz

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1: The standard 12 lead ECG reads electrical data from ___ leads placed on the body.

3
8
10
12

2: Which ECG event is most disruptive when interpreting a diagnostic 12 lead?

premature ventricular contraction (PVC)
atrial fibrillation
right bundle branch block
left bundle branch block

3: Which of the following items is most important when diagnosing an acute cardiac emergency?

patient signs, symptoms, and history
the 12 lead ECG
cardiac markers in laboratory studies
the echocardiogram

4: Which 12 lead group focuses on the inferior left ventricle?

II, III, AVF
I, AVL
V1-4
V 5-6

5: Which 12 lead group focuses on the anterior left ventricle?

II, III, AVF
I, AVL
V1-4
V 5-6

6: What pattern of pathology indicates myocardial ischemia when seen on a 12 lead ECG?

flat or inverted T waves
ST segment elevation
Q waves less than one millimeter wide
Q waves greater than one millimeter wide

7: What pattern of pathology indicates acute myocardial injury when seen on a 12 lead ECG?

flat or inverted T waves
ST segment elevation
Q waves less than one millimeter wide
Q waves greater than one millimeter wide

8: What pattern of pathology indicates myocardial infarction when seen on a 12 lead ECG?

flat or inverted T waves
ST segment elevation
Q waves less than one millimeter wide
Q waves greater than one millimeter wide

9: An acute inferior MI will present with ST elevation in leads?

avr , v5, v6
avr, v1, v2
I,II, v5, v6
II, III, AVF

10: A normal 12 ECG always rules out the presence of AMI?

True
False