Final answer:
Further tests for a swollen lesion on the tongue should include microbial cultures, histopathological examination, and possibly molecular testing. Treatment would vary based on the underlying cause and could range from antiviral or antifungal medications to antibiotics. A healthcare professional should evaluate the lesion to determine an appropriate course of action.
Step-by-step explanation:
When presented with a swollen lesion on the tongue, further investigation is required to determine the underlying cause. Following the examination and preparation of a smear from the oral mucosa, as described, additional tests might include microbial cultures, histopathological examination, or molecular testing to identify any bacterial, viral, or fungal pathogens. Depending on the results, treatment could range from antiviral or antifungal medications to antibiotics in the case of a bacterial infection. In the context of a swollen lesion on the tongue, it is important to distinguish between different conditions that may present with similar symptoms, such as herpetic gingivostomatitis, oral thrush, and mumps; each requires a specific set of treatments.
For the hypothetical case given, after the clinical observations have been made, the next step could involve a referral to a healthcare professional for diagnosis. Based on the observed signs and symptoms, the physician may recommend tests such as a complete blood count (CBC), serological tests to detect specific infections, or a biopsy of the lesion if indicated. The treatment plan will depend on the diagnosis but could include antiseptic mouthwashes, pain relievers, topical steroids, or systemic therapies for any underlying systemic condition.