Thiamine deficiency, also known as beriberi, can be diagnosed through a combination of physical examination, blood tests, and sometimes, neurological tests.
Physical Examination
A doctor will ask about your symptoms and medical history. They will also perform a physical exam to check for signs of thiamine deficiency, including:
- Cardiovascular problems: Rapid heartbeat, shortness of breath, swelling in the legs and feet.
- Neurological problems: Confusion, memory loss, difficulty walking, tingling or numbness in the hands and feet.
- Gastrointestinal problems: Loss of appetite, nausea, vomiting, constipation.
Blood Tests
Blood tests can measure the levels of thiamine in your blood. Low levels of thiamine can indicate a deficiency.
Neurological Tests
In some cases, neurological tests, such as an electroencephalogram (EEG) or nerve conduction studies, may be used to assess the severity of nerve damage caused by thiamine deficiency.
Other Tests
Other tests, such as a urine test, may also be used to assess thiamine levels.
Note: It's important to remember that these tests are only part of the diagnosis. A doctor will consider your medical history, symptoms, and test results to determine if you have thiamine deficiency.
