Final answer:
White patches on the tongue suggest the potential for oral cancer and would necessitate further evaluation to exclude malignancy.
Step-by-step explanation:
Among the findings from the nurse's inspection of the client's oral cavity, white patches on the tongue would indicate the need to evaluate the client for oral cancer. These white patches are often known as leukoplakia, which can be a precursor to cancer. They are generally painless but can become cancerous over time. Therefore, any presence of such patches would warrant further investigation by a healthcare professional to rule out malignancy.