Final answer:
If ondansetron is not relieving symptoms of nausea and vomiting, alternative medications can be considered. It is important to assess the dosage and frequency of the medication and consult with a healthcare provider if symptoms are severe and uncontrolled.
Step-by-step explanation:
If a patient has received ondansetron but is not experiencing relief from their symptoms of nausea and vomiting, there are several options that can be considered. First, it is important to assess the dosage and frequency of the medication to ensure it is being administered correctly. Additionally, alternative antiemetic medications can be considered, such as metoclopramide or promethazine, which may be more effective for some patients. If the patient's symptoms are severe and uncontrolled, it may be necessary to consult with a healthcare provider for further evaluation and management.