The parents of a 14 y/o boy bring their son to the hospital. He is lethargic, but responsive. The mother states, "I think he took some of my pain pills." During initial assessment of the teenager, what information is most important for the nurse to obtain from the parents?
a. If he has seemed depressed recently.
b. If a drug overdose has ever occurred before.
c. If he might have taken any other drugs.
d. If he has a desire to quit taking drugs.