Metabolic and Allergy Tests
Thyroid Profile Test
This blood test is performed to determine the functions of the thyroid gland. Decreased function may result in inner ear problems.
Glucose Tolerance Test
This test evaluates the body’s ability to utilize blood sugar. The inability to metabolize sugar in a normal manner may result in hearing or balance problems. After fasting for 12 hours, the initial blood specimen is taken to determine the sugar content. Sugar solution is then ingested, and further specimens are drawn over a period of five hours.
Immune Profile Test
This blood test determines if the protective mechanism of the body (the immune system) is functioning properly. There are several ear problems which appear to be related to immune abnormalities (autoimmune diseases).
Allergy Skin Tests
Skin tests are performed to determine sensitivities to inhalants (pollen, dust, mold) and foods. Diagnosis is based on the degree of response following injection into the outer skin layers. When positive reactions occur to allergy tests, treatment such as allergy shots or medications may be prescribed to control any allergy symptoms.
RAST Test (Radioallergosorbent Test)
The RAST blood test measures antibodies (blood proteins) to specific allergens. It may be used to determine sensitivities to inhalants and some foods.
Food Challenge Test
This test is designed to determine whether certain foods cause symptoms. Foods to be tested are eaten, or may be ingested in purified form. The patient is observed to see if allergic symptoms develop.
Histamine Titration Test
Histamine is a substance that is used to test certain types of hearing and balance disorders. This test determines the strength of solution to be used in treating an individual. Several injections are placed in the outer layer of the skin. The degree of reaction indicates the strength of solution to be used.