A nurse is caring for a client who has been taking selegiline to treat Parkinson's disease. The provider is considering the use of analgesics for the client but should be aware that a drug interaction between selegiline and meperidine can result in which of the following?
a. Increased risk of serotonin syndrome
b. Excessive sedation and respiratory depression
c. Hypertensive crisis
d. Decreased effectiveness of the analgesic