It's difficult for doctors to diagnose dementia in its early stages. Doctors must study the patient's medical history and do a physical examination in order to determine the etiology of dementia. Because there is no single test for dementia, doctors will usually do numerous tests to determine a patient's true condition.

A blood test can quickly uncover physical issues that can affect the brain's process.

A CT or MRI scan can be used to look for signs of a stroke, hemorrhage, tumors, or hydrocephalus.

Doctors assess your memory, language, visual perception, attention, problem-solving, mobility, senses, balance, reflexes, and other regions of your brain.

Doctors will assess your capacity to think through cognitive and neuropsychological exams. Tests of cognition and neuropsychology Cognitive abilities such as memory, direction, reasoning, and judgment, as well as language and attention skills, are assessed using a number of tests.

PET (positron emission tomography) is a technique for detecting brain activity.