Final answer:
A priority question to ask a client with a recurring sore throat since childhood would be about the frequency and severity of the episodes, as well as associated symptoms like fever or swollen lymph nodes, to aid in differential diagnosis.
Step-by-step explanation:
When dealing with a client who reports a repetitive sore throat since childhood, a priority question would be to inquire about the frequency and severity of the sore throat episodes. This is crucial for understanding the pattern and potential causes of the condition. For example, if the sore throat is associated with certain seasons or environmental factors, this could suggest allergies. Additionally, asking about the presence of other symptoms, such as fever or swollen lymph nodes, could indicate an ongoing infection or an immune system condition. This priority question begins the process of differential diagnosis, which is essential for developing an appropriate management plan for the client.