The patient with a traumatic brain injury has symptoms of life-threatening elevated intracranial pressure. The provider instructs the nurse to prepare the patient for the insertion of an intraventricular catheter to monitor intracranial pressure (ICP) and drain cerebrospinal fluid as necessary. Which lab value prompts the nurse to clarify the safety of the procedure with 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.  

Several tenants from an apartment building are brought to the emergency department with concern for carbon monoxide poisoning. One patient presents with reddish-purple skin, a blood pressure of 94/48 mmHg, heart rate of 118 bpm, and altered consciousness (arouses when his name is shouted). The nurse anticipates testing will reveal which carbon monoxide level?