### Patient: Doctor, I have been experiencing severe headaches and blurred vision. My family history suggests that my grandfather had brain cancer. What do you think is causing my symptoms?
### Doctor: Based on your symptoms and family history, I suspect you may have brain cancer. To confirm the diagnosis, we will need to run a series of tests. These include a hematologic test to analyze your blood, a complete blood count to check for abnormalities, radiographic imaging procedures such as MRI and CT scans, a glucose measurement to evaluate your blood sugar levels, and an electrolytes panel to assess your body's balance of minerals and vitamins.