Final answer:
The nurse should ask the client about the timing, exemptions during illness, and significance of their fasting practice.
Step-by-step explanation:
The nurse should ask the client the following question: Does your fasting occur during certain hours of the day? This question is important because different religions and cultures may have specific times during the day when fasting is observed. For example, Muslims fast from sunup to sundown during Ramadan. By understanding the specific timing of the client's fasting practice, the nurse can provide appropriate care during those hours.
Additionally, the nurse should also ask the client the following questions: Are you exempt from fasting during illness? and Is there a specific reason or significance behind the fasting practice? These questions help the nurse gain a comprehensive understanding of the client's fasting practice, including any exemptions or underlying beliefs behind the religious practice.