ABIM Clinical EP Practice Questions - ABIM Clinical Cardiac Electrophysiology Subspecialty Certification Exam

Which currents jointly maintain the phase 2 plateau of the ventricular action potential?

INa inward and IK1 outward ICaL inward and delayed rectifier potassium currents (IKs/IKr) outward If inward and Ito outward INa/K ATPase and Na/Ca exchanger only

Correct Answer:

ICaL inward and delayed rectifier potassium currents (IKs/IKr) outward

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