EKG Flashcards
1
Q
What is a normal PR interval? What event is this
A
.12-.20
atrial depolarization
2
Q
What is a normal QRS
A
3
Q
What does the QT interval indicate
A
Ventricular depolarization and repolarizaton
4
Q
An elevated ST segment is indicative of
A
A myocardial infarction. STEMI
5
Q
What are the precordial leads
A
V1-V6
6
Q
What rate the frontal limb leads
A
I, II, III
7
Q
What are the augmented limb leads
A
aVF, aVR, aVL
8
Q
An inspiration pills heart toward _______, and an expiration pulls heart toward ________-
A
Toward vertical, toward horizontal
9
Q
What are the causes of right axis deviation
A
Right ventricular hypertrophy, left posterior fasicular block
10
Q
What is the rate of a normal HR
A
60-100
