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Tests for Manic Depression

Although there is no definitive test that can be used to diagnose manic depression (more commonly known as bipolar disorder), there are still tests that are run to rule out any physical causes for the symptoms. In addition, those with manic depression may need regular tests to check the effectiveness of their medications.

  1. Written Tests

    • As there is currently no physical test to screen for manic depression, psychiatrists often have a patient take a written test.This test lists symptoms, and patient circles which ones he experiences and rates the severity of the symptoms. The psychiatrist can then determine whether the patient's responses indicate bipolar disorder or a different psychiatric disorder. This test is usually the first step in making a definitive diagnosis of manic depression.

    Verbal Tests

    • Some psychiatrists use a verbal test in addition to or in place of a written one. This gives a patient the opportunity to expand on her symptoms and the symptoms' effect on her quality of life. It also allows the psychiatrist to observe the patient's mannerisms and any tics she may exhibit, which can play an important role in diagnosing any psychiatric disorder. Once the verbal test is completed, the psychiatrist will usually make a diagnosis and order other tests to rule out physical causes.

    Blood Tests

    • Blood tests are often taken after a diagnosis of bipolar disorder to make sure treatment with medication is the best option and to rule out any physical causes for the depression and mania associated with this disorder. Thyroid problems can worsen or mimic the symptoms of manic depression. Problems with the kidneys, liver and other organs can also mimic bipolar symptoms. More importantly, if a patient has an organ problem, taking medication to treat bipolar disorder can potentially make it worse.

    Imaging

    • A CT scan or MRI may be ordered if the doctor is not convinced that manic depression is responsible for the symptoms.This test will usually be run only if there are additional physical symptoms besides the mood swings of bipolar disorder. A brain tumor or lesion can cause problems similar to bipolar disorder in some cases. Multiple sclerosis is also commonly misdiagnosed as bipolar disorder if the distinguishing symptoms are overlooked.

    Medication Levels

    • Once treatment has begun, it may be important for the psychiatrist to carefully monitor the medication levels in the bloodstream, depending on what is prescribed. This is especially important for those who are prescribed lithium, as specific levels must be maintained to receive the proper effect. In addition, if the levels of lithium in the blood are too high, it can become toxic and may even result in death. Lithium levels are usually tested twice a year.

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