A nurse is planning to obtain a 12-lead ECG for a client who has a history of cardiac dysrhythmias. Which of the following actions should the nurse plan to take?

B Instruct the client to remain as still as possible during the recording. C Attach a blood pressure cuff to the client's upper arm. A Assist the client to the orthopneic position. D Tell the client to expect a mild stinging sensation during the test.