Which of the Following Is NOT True of Medications Used

question 76

Multiple Choice

Which of the following is NOT true of medications used as antidysrhythmics?

• A) Class I antidysrhythmics are used to block sodium channels to slow the impulse conduction.
• B) Class II antidysrhythmics are beta-blockers that decrease the SA automaticity, AV velocity, and myocardial contractility and are similar to calcium channel blockers.
• C) Class III antidysrhythmics block potassium channels prolonging ventricular repolarization.
• D) Class IV antidysrhythmics are calcium channel blockers that have effects identical to those of beta-blockers.
• E) All of the above statements are true.

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