is considered mood disorder, which include the occurrence of depressive episodes and one or more related mood… - ESIC Nursing Officer 2016 (shift-1)

ESIC Nursing Officer 2016 (shift-1)

Mental Health Nursing

Easy

Appeared in: ESIC Nursing Officer 2016 (shift-1)

Explanation

Bipolar disorder is fundamentally defined by the occurrence of at least one manic or hypomanic episode, which distinguishes it from unipolar depressive disorders.
The question describes a condition that includes depressive episodes plus 'one or more related mood episodes,' which directly points to the manic or hypomanic episodes characteristic of bipolar disorder.
Most individuals diagnosed with bipolar disorder experience both depressive episodes and episodes of elevated mood (mania or hypomania), fitting the description perfectly.
Bipolar I is diagnosed after a manic episode, while Bipolar II is diagnosed after a hypomanic episode and a major depressive episode.

Option B: Delusional disorder is a psychotic disorder, not a mood disorder. Its core feature is the presence of non-bizarre delusions for at least one month. Mood symptoms are not a defining feature.
Option C: This is a broad, non-specific category. While some psychotic disorders have mood components (like schizoaffective disorder), 'psychotic disorder' is not the most precise answer for a condition defined by alternating depressive and manic/hypomanic states.
Option D: Depressive disorders (like Major Depressive Disorder) are characterized exclusively by depressive episodes. The key differentiator is the absence of any history of manic or hypomanic episodes.

Visual 1: Chart - A comparative chart showing the mood fluctuations over time for a person with normal mood, unipolar depression, Bipolar I disorder, and Bipolar II disorder. This helps visualize the key differences in the patterns of episodes.
Visual 2: Table - A table summarizing the diagnostic criteria (symptoms, duration, and severity) for manic, hypomanic, and major depressive episodes side-by-side.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Differential Diagnosis of Mood Disorders as background academic context rather than a clinical decision trigger.
A nurse's primary role in caring for a patient with bipolar disorder is safety assessment. During a depressive episode, the risk of suicide is high. During a manic episode, the risk of impulsive, dangerous behavior is high.
Accurate assessment is crucial. A nurse must be able to distinguish between unipolar depression and bipolar disorder because prescribing antidepressants alone to a person with bipolar disorder can trigger a manic episode.
Patient education is a key nursing intervention. This includes teaching the patient and family about the nature of the illness, the importance of medication adherence, and how to recognize early warning signs of an impending mood episode.

How to Approach the Question

First, analyze the keywords in the question: 'mood disorder,' 'depressive episodes,' and 'one or more related mood episodes.' The last phrase is the most critical clue.
Next, define each option in your mind. What is the core feature of each disorder?
Depressive disorder = depression only.
Bipolar disorder = depression + mania/hypomania.
Delusional/Psychotic disorders = primarily about delusions/hallucinations.
Compare the question's description to your definitions. The description of depressive episodes PLUS other mood episodes perfectly matches the definition of Bipolar disorder.

Concept Tested & Keywords

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