A Person with a Substance Abuse Problem Has Just Self-Administered

Multiple Choice

A person with a substance abuse problem has just self-administered by intramuscular injection an overdose of fentanyl, a very powerful synthetic narcotic. A potentially fatal side effect of fentanyl overdose is that breathing stops. Assuming the drug would interfere with breathing when it reaches the brain, the person should experience breathing difficulty:

A) almost immediately.
B) in a few seconds.
C) in a few minutes.
D) in about a half hour.