The nurse is caring for a 68-year-old client with a history…

The nurse is caring for a 68-year-old client with a history of coronary artery who disease suddenly becomes unresponsive. The cardiac monitor shows a narrow QRS rhythm at 70 bpm. Upon assessment the nurse finds: No palpable pulse No spontaneous breathing Blood pressure: unable to obtain Oxygen saturation: not reading   Based on the assessment findings, which of the following interventions is appropriate?