LQT Table Flashcards
1
Q
INa
Long QT Type?
A
LQT3
2
Q
ICa-‐L
Long QT Type?
A
LQT8
3
Q
IKr
Long QT Type?
A
LQT2,
LQT6 (α,β subunit defect)
4
Q
IKs
Long QT Type?
A
LQT1,
LQT5 (α,β subunit defect)
5
Q
IK1
Long QT Type?
A
LQT7
6
Q
INa
Effects?
A
Incomplete INa inactivation = increased excitation
7
Q
ICa-‐L
Effects?
A
Incomplete ICa inactivation (Timothy
Syndrome)
8
Q
IKr
Effects?
A
Decreased K current =
inability to terminate plateau phase
and return membrane to resting potential
9
Q
IKs
Effects?
A
Decreased K current =
inability to terminate plateau phase
and return membrane to resting potential
10
Q
IK1
Effects?
A
Decreased K current during diastole
