Central Institute of Psychiatry - 9 July 2022
Mental Health Nursing
Easy
Which mental illness is linked to Hypothyroidism?
Appeared in: Central Institute of Psychiatry - 9 July 2022
Explanation
- Hypothyroidism causes a generalized slowing of the body's metabolic processes, which directly impacts brain function and mood.
- This metabolic slowdown leads to a depressive syndrome in up to 40% of patients, characterized by low mood, fatigue, anhedonia, and psychomotor retardation.
- The underlying mechanism is linked to reduced thyroid hormone levels impairing neurotransmitter systems, particularly by decreasing serotonergic tone.
- In older adults, depression can be the primary or sole presenting symptom of hypothyroidism.
Why Other Options Were Wrong
- Option B: Delirium is an acute state of confusion and altered consciousness. It is not a common feature of standard hypothyroidism.
- Option C: Mania, characterized by elevated mood, hyperactivity, and racing thoughts, is the opposite of the typical presentation of hypothyroidism.
- Option D: While cognitive dysfunction (e.g., 'brain fog,' memory problems, slowed thinking) is a very common symptom of hypothyroidism, Depression is the primary and most distinct psychiatric illness or syndrome associated with the condition.
Related Visual
Clinical Relevance
- Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Relationship between endocrine disorders and psychiatric manifestations as background academic context rather than a clinical decision trigger.
- Nurses must maintain a high index of suspicion for underlying medical causes, like hypothyroidism, in patients presenting with psychiatric symptoms, particularly new-onset or treatment-resistant depression.
- Failing to screen for hypothyroidism can lead to ineffective psychiatric treatment and prolonged suffering, as the underlying cause is not being addressed.
- What if? If a patient being treated for hypothyroidism with levothyroxine presents with new-onset anxiety, palpitations, and insomnia, the nurse should suspect over-correction leading to iatrogenic hyperthyroidism and notify the provider to re-evaluate the dosage.
How to Approach the Question
- First, identify the key terms in the question: 'mental illness' and 'Hypothyroidism'.
- Recall the fundamental pathophysiology of hypothyroidism: it is a state of 'slowing down' due to insufficient thyroid hormone.
- Apply this 'slowing down' concept to the brain and mental state. This would logically lead to symptoms like low energy (fatigue), slowed thinking, and low mood (depression).
- Evaluate the options based on this principle. 'Depression' aligns perfectly with a slowed-down state.
- 'Mania' is associated with a 'sped-up' state, which is characteristic of the opposite condition, hyperthyroidism.
- 'Delirium' is an acute, severe confusion, more typical of a medical emergency (like myxedema coma) rather than a common link.
Concept Tested & Keywords
- Concept Tested: Relationship between endocrine disorders and psychiatric manifestations
- Stem keywords: mental illness, Hypothyroidism
- Lead-in keywords: Which
- Negative lead-in flag: false
Question ID
Q89Q-mRmeSJZ6NCupBVI4Y
Reference Book
E6 Robert Boland, Marcia L. Verduin - Kaplan and Sadock's Comprehensive Text of Psychiatry-Wolters Kluwer Health (2024) (pp 1-16525 of 16525) p. 2318-2320
E6 Kaplan Sadock's Synopsis of Psychiatry-2022 (pp 1-3768 of 3768) p. 841-843
Practise the full Central Institute of Psychiatry - 9 July 2022
Attempt every question from this paper in a timed mock, then review the full solution for each one.
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