The patient is undergoing cardioversion for symptomatic atrial flutter. Which event requires immediate intervention by the nurse?

The 38-year-old patient who strictly adheres to a vegan diet complains of weakness and tingling in her lower extremities. She retains the strength in her lower extremities but proprioception is decreased.  Her complete blood count revealed a hemoglobin of 10.2 mg/dL, white blood cell count of 9 x 10³ cells/µL, and a mean corpuscular volume of 110. Which information does the nurse provide to the patient?  

The nurse witnesses a healthy 19-year-old collapse while playing football. The individual is arousable but confused and irritable. The skin is warm, dry, and flushed. The nurse instructs a teammate to bring the water cooler and pours it over the victim. The teammate shouts, “Why did you do that?! Won’t he go into shock?”  The nurse bases the response on the need for rapid cooling to prevent which conditions? Select all that apply.