Time：2022-09-27 09:32:58 source：psychiatricethics.com author：Public activities Read：343次

How is depression diagnosed? After reading it, you will understand

"How is depression diagnosed? Do I need an instrument to check? Is it necessary to draw blood?..." This is a common question asked by many patients who suspect that they have depression but have not gone to the hospital for examination. So how is depression diagnosed? Let's find out together. First, depression cannot be detected by instruments. Some patients have been tested for neurotransmitter function when they go to the hospital for examination. In fact, this test is unreliable and cannot be used as the basis for the diagnosis of depression. Although human emotions are indeed related to a variety of neurotransmitters, such as serotonin, dopamine, and norepinephrine, the relationship between depression and neurotransmitter content is still in the academic research stage and cannot be directly applied to clinical diagnosis. And it remains to be verified whether this test can actually detect neurotransmitter levels accurately. However, there is an exception, head magnetic resonance examination is necessary for some patients, especially the middle-aged and elderly patients with depression. Because about 40% of depressed patients over the age of 50 suffer from stroke, commonly known as stroke. Post-stroke depression is often accompanied by complications, including fatigue, slow thinking, low mood, pessimism and despair, and even suicidal thoughts and other abnormal behaviors. Second, depression cannot be detected by means of blood tests, etc. Unlike diabetes, liver and kidney disease, etc., which have clear biological indicators, depression can be diagnosed by testing whether certain components in the blood are normal. Except for the organic lesions caused by drugs, other psychiatric diseases have no biological markers to determine whether they are sick or not. However, this does not mean that blood tests are not necessary when checking for depression, because depression is prone to co-morbidity with some physical diseases, such as diabetes. A survey shows that the prevalence of depression in diabetic patients is 17.6%. Therefore, if a patient has depression symptoms such as low mood and decreased energy, but also has symptoms of polydipsia, polyuria, polyphagia, and weight loss, a psychiatrist may recommend that the patient go to the endocrinology department to check whether he has diabetes. So how does a psychiatrist diagnose depression? In fact, most diseases in psychiatry are diagnosed by clinical manifestations. The most typical manifestations of depression are low mood, loss of interest, and anhedonia. Memory loss, suicidal ideation or behavior, etc. Sometimes there may be abnormal manifestations that the patient is not aware of, and the doctor will also in-depth inquiries through observation. Of course, this also has a certain relationship with the doctor's experience. Experienced doctors often consider more comprehensive factors before making a diagnosis, and the diagnosis is more accurate. In addition, some professional scales are also commonly used auxiliary tools in psychiatry, such as SDS Self-rating Depression Scale, Baker Depression Questionnaire, Symptom Self-rating Scale, etc. These scales are also easy to find on the Internet, but don’t randomly choose the number and measure The results of the table can only be used as a reference, not directly as a diagnosis result. Professional doctors need to interpret it in combination with clinical symptoms. Therefore, the diagnosis of depression should not be superstitious about some instrument tests, go to a public tertiary hospital for treatment, preferably a psychiatric hospital, trust professional doctors!

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