EKG Basics Flashcards
1
Q
Atrial depolarization is recorded as a [ ] wave on EKG
A
P
2
Q
AV valves are:
A
The mitral and tricuspid valves
3
Q
Depolarization of the ventricular myocytes produces a [ ] complex on the ECG and initiates contraction of the ventricles
A
QRS
4
Q
The horizontal segment of baseline that follows the QRS complex is known as the [ ] segment
A
ST
5
Q
Which ions cause myocyte contraction?
A
Calcium ions
6
Q
Which ions causes repolarization of myocytes?
A
Potassium ions
7
Q
Leads V3 and V4 are oriented over the area of:
A
The interventricular septum (separates the cavity of the right ventricle from the cavity of the left ventricle)
8
Q
Einthoven’s Law of Leads:
A
II = I + III
