[Verified Answer]: A 45-year-old patient undergoing…

Question 14 A 45-year-old patient undergoing chemotherapy for cancer is experiencing nausea. The nurse practitioner prescribes ondansetron for the patient. Which of the following is the primary mechanism of action of ondansetron? “Ondansetron blocks serotonin receptors in the gastrointestinal tract and central nervous system to prevent nausea and vomiting.” “Ondansetron increases gastric motility to help relieve nausea and vomiting.” “Ondansetron works by inhibiting histamine release to prevent nausea associated with chemotherapy.” “Ondansetron blocks dopamine receptors in the brain to prevent nausea and vomiting:”