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month, lunar

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Four calendar weeks (28 days), a measurement of time used in obstetrics. Pregnancy is calculated in terms of 10 lunar months.

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monthly period

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SEE: under period.

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mood

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A pervasive and sustained emotion that may have a major influence on a person's perception of the world. Examples of mood include depression, joy, elation, anger, and anxiety. SEE: affect.

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mood disorder

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Any mental disorder that has a disturbance of mood as the predominant feature. In the Diagnostic and Statistical Manual of Mental Disorder, these have been divided into mood episodes, mood disorders, and specifications describing either the most recent mood episode or the course of recurrent episodes. Mood disorders, including dysthymic disorder, are divided into the depressive disorders (unipolar depression), the bipolar disorders, and two disorders based on cause, i.e., due to a general medical condition or substance-induced mood disorder. Depressive disorders are distinguished from the bipolar disorders by the absence of a history of a manic, mixed, or hypomanic episode. Bipolar I disorder and bipolar II disorder involve the presence of or history of manic episodes, mixed episodes, or hypomanic episodes, usually with a history or presence of major depressive episodes.

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postpartum m.d. SEE: postpartum blues; postpartum depression.

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substance-induced m.d. A prominent and persistent disturbance in mood characterized by either or both of the following: depressed mood or markedly diminished interest or pleasure in all, or almost all, activities; and elevated, expansive, or irritable mood. The clinical and laboratory findings must support that either the symptoms developed during, or within a month of, substance intoxication or withdrawal, or that the medication (i.e., substance) is causally related to the disturbance. The condition cannot be better accounted for by a mood disorder that is not substance induced. The disturbance does not occur exclusively during the course of a delirium. The symptoms cause clinically significant distress or impairment in social, occupational, or other important areas of functioning.

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mood regulation, impaired

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A mental state characterized by shifts in mood or affect and which is comprised of a constellation of affective, cognitive, somatic and/or physiological manifestations varying from mild to severe. SEE: Nursing Diagnoses Appendix.

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mood stabilizer

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Any agent or therapy that prevents or relieves wide fluctuations in affective range, as in bipolar disorder. Mood-stabilizing drugs include carbamazepine, lithium carbonate, and valproic acid.

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mood swing

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A rapid, extreme change in how one feels, from a sense of well-being to one of depression. This occurs normally, but it may become abnormally intense in people with manic-depressive states.

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moon face

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SEE: moon face.

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Mooren ulcer

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(mōr′ĕn, moor′) [Albert Mooren, Ger. ophthalmologist, 1828–1899] A rare, ...

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