The physician orders a potassium channel blocker for a client. Which medication would the nurse anticipate the physician to order?
1. Amiodarone (Cordarone)
2. Acebutolol (Sectral)
3. Lidocaine (Xylocaine)
4. Mexiletine (Mexitil)
1
Rationale 1: Amiodarone (Cordarone) is a potassium channel blocker.
Rationale 2:Acebutolol (Sectral)is incorrect because it is a beta-adrenergic blocker.
Rationale 3:Lidocaine (Xylocaine) is incorrect because it is a sodium channel blocker.
Rationale 4:Mexiletine (Mexitil) is incorrect because it is a sodium channel blocker.
Global Rationale: Amiodarone (Cordarone) is a potassium channel blocker. Lidocaine (Xylocaine)and mexiletine (Mexitil)are sodium channel blockers.Acebutolol (Sectral) is a beta-adrenergic blocker.
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