Final answer:
The effective result of metoclopramide administration is the relief of nausea and vomiting.
Step-by-step explanation:
After administration of a dose of metoclopramide, the patient assessment finding that would show the medication was effective is the relief of nausea and vomiting. Metoclopramide is a medication commonly used to relieve symptoms of nausea and vomiting by increasing the movements or contractions of the stomach and intestines. It works by blocking dopamine receptors in the brain, which reduces the feeling of nausea and helps with the emptying of the stomach.