66.Ivabradine用以治療心搏過速,且不影響心肌收縮力、心室再極化和心內傳導,其作用機制為何?
(A)funny current(If)blocker
(B)L-Type calcium channel blocker
(C)T-Type calcium channel blocker
(D)beta blocker
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統計: A(446), B(62), C(40), D(10), E(0) #1844742
統計: A(446), B(62), C(40), D(10), E(0) #1844742
詳解 (共 3 筆)
#3434960
Ivabradine | selective blocker of If (funny current) |
Ranolazine | 阻斷 INaL(laten component of the Na+ current)、IKr |
Dantrolene | 阻斷 ryanodine calcium releasen channel |
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#3434973
69.Ranolazine為一新穎抗心絞痛藥物,其作用機轉為何?
(A)抑制late component of the Na+ current
(B)活化rapid component of the delayed rectifier K+ current
(C)nitric oxide donor
(D)alpha-1 adrenergic receptor blocker
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