PsychCentral offers an online screening quiz for bipolar disorder. An online questionnaire can help determine the need to consult a doctor or mental health professional for diagnosis and treatment of bipolar disorder.
Bipolar disorder, or manic-depressive illness, is a brain disorder that causes unusual shifts in mood, energy, activity level and the ability to carry out daily tasks, according to National Institute of Mental Health.
Proper diagnosis is necessary for proper treatment, cautions NIMH. Diagnosis includes a physical examination and lab tests to rule out other factors that may cause mood problems. Following such an examination, a general practitioner may refer the patient to a mental health specialist for further evaluation.