You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is In making your decision to treat with procainamide, which of the following statements would be relevant? and explain in detail?
Procainamide prolongs the effective refractory period in atrial and ventricular cells. Ref: KDT, tth Edition, Page 511,512 Procainamide prolongs refractory period by blocking sodium channels and by prolonging the AP. All of the other statements are false.