Sam is treating a patient who is a heroin addict. The patient has been in an accident, and is administered morphine to help with the pain; however, Sam notices that the patient has a rather high tolerance for morphine. What type of tolerance has the patient developed?
a. Reverse tolerance
b. Functional tolerance
c. Cross-tolerance
d. Metabolic tolerance
a. Reverse tolerance
b. Functional tolerance
c. Cross-tolerance
d. Metabolic tolerance