A patient has been prescribed a medication to treat tachyarrhythmias. What is the mechanism of action of this medication?
Q1. A patient has been prescribed a medication to treat tachyarrhythmias. What is the mechanism of action of this medication?
Answer: Inhibiting the calcium channels
Explanation: Medications that inhibit calcium channels are effective in treating tachyarrhythmias. Blocking alpha-adrenergic receptors affects peripheral resistance, while blocking beta-adrenergic receptors can have undesirable effects. Increasing potassium ion permeability is a mechanism of action of certain cardiac glycosides.