Assessing olfactory function is typically done through a series of tests: 1. Patient History: Ask about any changes in their sense of smell or taste, recent illnesses, or head injuries. 2. Smell Identification Tests: Use standardized kits to test the patient's ability to identify different scents. 3. Physical Examination: Check for any obstructions in the nasal passages that might affect smell. 4. Neurological Evaluation: In some cases, a more detailed examination may be required to assess neurological health.