Diagnosis of a balance disorder is complicated because there are many kinds of balance disorders and because other medical conditions--including ear infections, blood pressure changes, and some vision problems--and some medications may contribute to a balance disorder. A person experiencing dizziness should see a physician for an evaluation.
The primary physician may request the opinion of an otolaryngologist to help evaluate a balance problem. An otolaryngologist is a physician/surgeon who specializes in diseases and disorders of the ear, nose, throat, head, and neck, with expertise in balance disorders. He or she will usually obtain a detailed medical history and perform a physical examination to start to sort out possible causes of the balance disorder. The physician may require tests to assess the cause and extent of the disruption of balance. The kinds of tests needed will vary based on the patient's symptoms and health status. Because there are so many variables, not all patients will require every test.
Some examples of diagnostic tests the otolaryngologist may request are a hearing examination, blood tests, an electronystagmogram (ENG--a test of the vestibular system), or imaging studies of the head and brain.
The caloric test may be performed as part of the ENG. In this test, each ear is flushed with warm and then cool water, usually one ear at a time; the amount of nystagmus resulting is measured. Weak nystagmus or the absence of nystagmus may indicate an inner ear disorder.
Another test of the vestibular system, posturography, requires the individual to stand on a special platform capable of movement within a controlled visual environment; body sway is recorded in response to movement of the platform and/or the visual environment.
How can I help my doctor make a diagnosis?
You can take the following steps that may be helpful to your physician in determining a diagnosis and treatment plan.
- Bring a written list of symptoms to your doctor.
- Bring a list of medications currently being used for balance disorders to your doctor.
- Be specific when you describe the nature of your symptoms to your doctor. For example, describe how, when, and where you experience dizziness.
Lastly, remember to write down any instructions or tips your doctor gives you.
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