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 older adult patient is brought to the emergency department with sudden onset confusion, agitation, and hallucinations. The patient's past medical history is significant for type 2 diabetes managed with glyburide, anxiety managed with lorazepam, and insomnia managed with zolpidem. Upon assessment, the patient's heart rate and rhythm are regular, lungs are clear to auscultation, and bowel sounds are present. Vital signs are normal, with exception of a slightly elevated heart rate. Which is the most likely cause of the patient's symptoms?

The mother of the 16-year-old patient with schizophrenia asks the nurse, “I can hardly get him out of bed each day, he won’t ever shower, and it just doesn’t seem like he understands when I try to teach him new things. He takes his medicine like he’s supposed to. Why does he keep getting worse?” Which response by the nurse is appropriate?