The unresponsive patient is brought via ambulance to the emergency department.  On physical assessment, the patient has a respiratory rate of 8 breaths per minute and pinpoint pupils. The nurse suspects which cause of the patient's condition?

The patient with schizophrenia has refused medication for several days. When the nurse attempts to administer the medication he responds, "I don’t need this. Give it to somebody who has a mental disorder." The nurse suspects which condition?

A patient with longstanding alcohol abuse problems is admitted for COPD exacerbation. After reaching the floor, the patient becomes disoriented, anxious, tachycardic, diaphoretic, and tremulous. His oxygen saturation is 95% on 2 L supplemental oxygen via nasal cannula. Which intervention is most appropriate for this patient?