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?

Which neurotransmitter system is affected by the drug of choice for major depressive disorder? 

The single parent of the child with a severe developmental disorder confides in the nurse that caring for the child is becoming impossible to do alone. Which actions by the nurse are most appropriate? Select all that apply.