2.4 Heart Flashcards
1
Q
phase 0 of the CAP
A
Na
2
Q
phase 2 of the CAP
A
Ca open
3
Q
phase 3 of the CAP
A
K open
Ca close
4
Q
phase 4 of the CAP
A
resting/pacemaker
5
Q
QT is ___-dependent and must be adjusted at HR > ___
A
rate
60
6
Q
delayed after depolarization due to what?
A
Ca influx
7
Q
class ___ and III work on phase 3 of the CAP
A
Ia
8
Q
binding strength of class I (high to low)
A
CAB
9
Q
dissociation speed of class I (high to low)
A
BAC
10
Q
class I_ can cause QT prolongation
A
Ia
11
Q
class I_ can cause anticholinergic symptoms
A
Ia
12
Q
class I_ can cause altered taste
A
Ic
13
Q
NSAIDs reduce effectiveness of what class?
A
beta blockers
14
Q
CCBs ___ the plateau phase
A
shorten (phase 2)
(and decrease DAD)
15
Q
di vs non-di CCBs (side effects)
A
reflex tachycardia vs bradycardia/AV block
