The primary assessment reveals that the patient is anxious

The primary assessment reveals that the patient is anxious. His airway is clear, and he can speak only in broken sentences. The patient has a respiratory rate of 28/minute with diminished rise and fall. The peripheral pulses are present, and his heart rate is 126 beats per minute and slightly irregular. The SpO 2 reading is 93 percent without oxygen.

a. What immediate emergency care should you provide based on the primary assessment?

b. When applying the cardiac monitor, would it be wiser to obtain a 3-lead tracing or a 12-lead tracing initially? Explain your answer.