Geriatric Psychiatry Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Geriatric Psychiatry. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Geriatric Psychiatry Indian Medical PG Question 1: Reversible dementia causes are all except-
- A. Subdural hematoma
- B. Myxedema
- C. Vitamin B12 deficiency
- D. Lewy body dementia (Correct Answer)
Geriatric Psychiatry Explanation: ***Lewy body dementia***
- **Lewy body dementia** is a **progressive neurodegenerative disease**, characterized by the abnormal accumulation of alpha-synuclein proteins (Lewy bodies) in the brain.
- It is an **irreversible form of dementia**, meaning its cognitive decline cannot be halted or reversed.
*Subdural hematoma*
- A **subdural hematoma**, especially chronic, can cause **cognitive impairment** due to pressure on the brain [1].
- If diagnosed and treated early (e.g., surgical evacuation), the associated cognitive deficits can often be **reversed or significantly improved**.
*Myxedema*
- **Myxedema**, or severe hypothyroidism, can lead to **reversible cognitive dysfunction**, including memory impairment and slowed thinking.
- Treatment with **thyroid hormone replacement** can reverse the dementia-like symptoms.
*Vitamin B12 deficiency*
- **Vitamin B12 deficiency** can cause a range of neurological symptoms, including **cognitive decline** and dementia-like symptoms [1].
- With timely and adequate **vitamin B12 supplementation**, the associated cognitive impairment can often be **reversed** [1].
Geriatric Psychiatry Indian Medical PG Question 2: Reversible dementia is seen in?
- A. Pick's disease
- B. Alzheimer's disease
- C. Hypothyroidism (Correct Answer)
- D. Subacute demyelination of spinal cord
Geriatric Psychiatry Explanation: ***Hypothyroidism***
- **Hypothyroidism** can lead to cognitive impairment, including memory loss, slowed thinking, and executive dysfunction, which are reversible with appropriate **thyroid hormone replacement therapy**.
- This condition is often characterized by other systemic symptoms like fatigue, weight gain, and cold intolerance, which also improve with treatment.
*Pick's disease*
- **Pick's disease** is a type of **frontotemporal dementia** caused by progressive degeneration of brain cells, primarily in the frontal and temporal lobes.
- It is a **neurodegenerative** disorder, meaning it is progressive and irreversible.
*Alzheimer's disease*
- **Alzheimer's disease** is the most common cause of dementia, characterized by the accumulation of **amyloid plaques** and **neurofibrillary tangles** in the brain [1].
- It is a **progressive and irreversible neurodegenerative disease** with no cure [2].
*Subacute demyelination of spinal cord*
- **Subacute demyelination of the spinal cord** typically refers to conditions like **subacute combined degeneration** due to **vitamin B12 deficiency** [1].
- While this can cause neurological symptoms, including cognitive changes, its primary impact is on the spinal cord and peripheral nerves, and "dementia" in the classic sense is not the primary or defining feature of spinal cord demyelination itself, although B12 deficiency can cause broader cognitive issues [1].
Geriatric Psychiatry Indian Medical PG Question 3: A drug is more likely to cause toxicity in elderly patients due to all of the following reasons except which of the following?
- A. decreased renal excretion of drugs
- B. decreased hepatic metabolism
- C. decreased volume of distribution (Correct Answer)
- D. increased receptor sensitivity
Geriatric Psychiatry Explanation: ***decreased volume of distribution***
- A **decreased volume of distribution** would generally lead to a higher peak plasma concentration for a given dose, potentially increasing drug effect and thus toxicity, particularly for **hydrophilic drugs**.
- However, for drugs that primarily distribute into **fat** or have a large volume of distribution, age-related changes in body composition (e.g., increased body fat, decreased total body water) can actually lead to an **increased volume of distribution** for some lipophilic drugs.
*decreased renal excretion of drugs*
- **Aging** is associated with a decline in **glomerular filtration rate (GFR)** and **renal tubular function**, leading to reduced drug clearance.
- This results in a longer **half-life** and accumulation of renally excreted drugs, increasing the risk of **toxicity**.
*decreased hepatic metabolism*
- Liver size, blood flow, and the activity of some **cytochrome P450 enzymes** may decrease with age.
- This leads to reduced **first-pass metabolism** and slower systemic clearance of many hepatically metabolized drugs, increasing their **bioavailability** and plasma concentrations.
*increased receptor sensitivity*
- Elderly patients often exhibit altered **pharmacodynamic responses**, including **increased sensitivity** to certain drugs.
- This means a lower concentration of the drug at the receptor site can produce a greater therapeutic or toxic effect, making them more susceptible to **adverse drug reactions**.
Geriatric Psychiatry Indian Medical PG Question 4: Which statement best describes the criteria for starting an urban community health center?
- A. Caters to a population of 1-1.5 lakh (Correct Answer)
- B. Referral center for 2-3 primary health centers
- C. Should have a 100-bed facility in metro cities
- D. No sub-district and district hospitals present in the area
Geriatric Psychiatry Explanation: ***Caters to a population of 1-1.5 lakh***
- An **urban community health center (UCHC)** is designed to provide comprehensive primary healthcare services to an urban population of **1 to 1.5 lakh**.
- This population criterion ensures effective service delivery and proper resource allocation for a designated urban area.
*Referral center for 2-3 primary health centers*
- This description typically applies to a **sub-district hospital** or a higher-level facility, which serve as referral centers for multiple primary health centers.
- A UCHC primarily focuses on direct provision of primary care, not usually acting as a referral hub for other primary care units.
*Should have a 100-bed facility in metro cities*
- A **100-bed facility** is characteristic of a larger hospital, such as a district hospital, not an urban community health center.
- UCHCs typically have minimal or no inpatient beds, focusing on outpatient services and emergency care rather than extensive hospitalization.
*No sub-district and district hospitals present in the area*
- This statement is not a criteria for a UCHC; in fact, UCHCs often function within a healthcare system that includes larger hospitals for referral of complex cases.
- The presence or absence of higher-level facilities does not define the necessity or establishment of a UCHC.
Geriatric Psychiatry Indian Medical PG Question 5: The most common cause of hyperthyroidism in a young female is?
- A. TSH-secreting pituitary adenoma
- B. Graves' disease (Correct Answer)
- C. Subacute thyroiditis
- D. Toxic multinodular goiter
Geriatric Psychiatry Explanation: ***Graves' disease***
- This is an **autoimmune disorder** where antibodies stimulate the thyroid gland, leading to **overproduction of thyroid hormones** [1], [2].
- It is the **most common cause of hyperthyroidism** in young to middle-aged women, making it highly probable in a young female patient [1], [2].
*Toxic multinodular goiter*
- This condition is characterized by **multiple nodules** within the thyroid gland that autonomously produce thyroid hormones.
- While a cause of hyperthyroidism, it is **more common in older individuals**, typically those over 50 years of age.
*Subacute thyroiditis*
- This is a **self-limiting inflammatory condition** of the thyroid often following a viral infection, causing a transient hyperthyroid phase due to the release of preformed hormones.
- It presents with **painful thyroid enlargement** and is usually followed by a hypothyroid phase, which is different from sustained hyperthyroidism.
*TSH-secreting pituitary adenoma*
- This is a **very rare cause of hyperthyroidism** where a pituitary tumor produces excess **Thyroid-Stimulating Hormone (TSH)**, leading to thyroid overstimulation.
- It is often accompanied by other symptoms of a pituitary mass like **headaches or visual field defects**, which are not implied here.
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