If a patient is restless, her skin is pale and cool, she states she is dizzy when she stands up and she is slightly short of breath and anxious. Her…

If a patient is restless, her skin is pale and cool, she states she is dizzy when she stands up and she is slightly short of breath and anxious. Her BP is 106/88. Her ECG monitor pattern shows uncontrolled atrial fibrillation with a heart rate ranging from 150 -170 beats/min. Her respirations are 20/min and her O2 saturation is 90%.

what should be the first action of the practical nurse, What additional data would the practical nurse collect and what potential complications of cardioversion and patient preparation for an elective cardioversion would be.