A biological factor which causes abnormal behaviour in mentally ill patients is?

IGNOU Post B. SC. Nursing entrance -2021

Mental Health Nursing

Easy

Appeared in: IGNOU Post B. SC. Nursing entrance -2021

Explanation

The question asks to identify a biological factor responsible for abnormal behavior in mental illness.
Biological factors relate to the body's physical, genetic, and chemical makeup.
Changes in neuro-chemicals (neurotransmitters) like serotonin and dopamine are well-established biochemical abnormalities that disrupt brain function and are a primary biological cause of many mental illnesses.
This makes 'Changes in neuro-chemicals' the correct biological factor among the choices.

Option A: Higher education is a social and educational attainment, not a biological factor. It is generally considered a protective factor against mental illness, not a cause.
Option B: Unemployment is a significant social and economic stressor. While it can precipitate or worsen mental health conditions, it is an environmental/social factor, not a biological one.
Option C: Poverty is a major social determinant of health and a chronic stressor. Like unemployment, it is a powerful environmental/social risk factor for mental illness, but it is not a biological cause.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Etiology of Mental Illness: Biological Factors as background academic context rather than a clinical decision trigger.
Understanding the Bio-Psycho-Social model is fundamental for nurses to provide holistic care. It emphasizes that mental illness is not just a 'brain disease' but is influenced by a person's thoughts, feelings, and social environment.
A nurse's assessment must cover all three domains to develop an effective care plan. For example, a patient with depression (biological) may also have negative thought patterns (psychological) and be facing eviction (social).
This model explains why treatment is often multi-modal, combining medication (targeting biology), psychotherapy (targeting psychology), and social support services (targeting the social environment).

How to Approach the Question

First, carefully read the question and identify the key term: 'biological factor'. This is the central clue.
Next, evaluate each option to determine its category: biological, psychological, or social/environmental.
Analyze Option A: 'Higher education' is related to a person's social and educational status.
Analyze Option B: 'Unemployment' is a social and economic condition.
Analyze Option C: 'Poverty' is also a social and economic condition.
Analyze Option D: 'Changes in neuro-chemicals' refers to the biochemical processes within the brain.

Concept Tested & Keywords

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E6 Guide to Mental Health & PSYCHIATRIC NURSING R Sreevani— Part 1 (pp 26-289 of 579) p. 46-48

E6 Parks TextBook of Preventive & Social Medicine part 2 — Subpart B (pp 233-449 of 464) p. 149-151