Dysrhythmias Flashcards
1
Q
isoelectric line
A
when cells are at rest
2
Q
P wave represents…
A
atrial contraction
3
Q
how SHOULD p waves present
A
round, upright, precede QRS, 1 P for every QRS
4
Q
normal PRI measurement
A
0.12 - 0.20
5
Q
what can a prolonged PRI mean?
A
delay at AV node
6
Q
what does the QRS complex represent
A
ventricular contraction
7
Q
normal QRS measurement
A
0.04-0.12; under 0.12
8
Q
what does a prolonged QRS mean
A
bundle branch block
9
Q
how should the ST segment appear?
A
isoelectric
10
Q
what can an ST segment elevation indicate?
A
STEMI
11
Q
what can ST segment depression indicate
A
NSTEMI, ischemia, hypokalemia
12
Q
what does the T wave represent
A
ventricular relaxation
13
Q
what can a tented/peaked T wave mean?
A
hyperkalemia
14
Q
what can a flattened T wave indicate
A
hypokalemia
15
Q
what can an inverted T wave indicate
A
ischemia, NSTEMI
