Final answer:
A patient with chronic kidney disease undergoing hemodialysis should follow a diet low in protein, nitrogen, and sodium intake, while also restricting oxalate-rich foods and maintaining adequate dietary calcium.
Step-by-step explanation:
An appropriate diet for a patient with chronic kidney disease undergoing hemodialysis is a diet low in protein, nitrogen and sodium intake. Additionally, oxalate-rich foods should be restricted, while maintaining an adequate intake of dietary calcium.