Metabolic Syndrome Indian Medical PG Practice Questions and MCQs
Practice Indian Medical PG questions for Metabolic Syndrome. These multiple choice questions (MCQs) cover important concepts and help you prepare for your exams.
Metabolic Syndrome Indian Medical PG Question 1: Which of the following is not the criteria for diagnosis of Metabolic syndrome?
- A. High LDL (Correct Answer)
- B. Hyperiglyceridemia
- C. Hypertension
- D. Central obesity
Metabolic Syndrome Explanation: ***High LDL***
- While **high LDL (low-density lipoprotein)** is a risk factor for cardiovascular disease [1], it is **not** one of the specific diagnostic criteria for metabolic syndrome.
- The criteria for metabolic syndrome focus on a cluster of metabolic abnormalities associated with insulin resistance.
*Hypertriglyceridemia*
- **Elevated triglycerides** (typically ≥ 150 mg/dL or on drug treatment for elevated triglycerides) is one of the key diagnostic criteria for metabolic syndrome.
- It reflects impaired lipid metabolism often associated with insulin resistance [2].
*Hypertension*
- **Elevated blood pressure** (systolic ≥ 130 mmHg or diastolic ≥ 85 mmHg, or on antihypertensive drug treatment) is a core component of metabolic syndrome.
- Hypertension in this context is often linked to underlying insulin resistance.
*Central obesity*
- **Increased waist circumference** (varying by ethnicity and sex, e.g., >102 cm in men and >88 cm in women for adults of European descent) is a primary criterion for metabolic syndrome.
- It is a strong indicator of visceral fat accumulation, which is closely linked to insulin resistance [3].
Metabolic Syndrome Indian Medical PG Question 2: Stress hyperglycemia occurs due to all except -
- A. Increased level of ACTH
- B. Decreased level of norepinephrine (Correct Answer)
- C. Insulin resistance
- D. Increased level of cortisol
Metabolic Syndrome Explanation: ***Decreased level of norepinephrine***
- **Norepinephrine** is a **catecholamine** that generally **increases blood glucose** by stimulating **glycogenolysis** and **gluconeogenesis**.
- Therefore, a *decrease* in norepinephrine would *reduce* stress-induced hyperglycemia, making this the exception.
*Increased level of ACTH*
- **ACTH (Adrenocorticotropic Hormone)** stimulates the adrenal glands to release **cortisol**, which contributes significantly to stress hyperglycemia.
- Increased ACTH levels therefore *promote* hyperglycemia in stress.
*Insulin resistance*
- **Insulin resistance** is a common feature during stress, where target cells become less responsive to insulin's effects.
- This reduced insulin sensitivity leads to higher circulating glucose levels, contributing to hyperglycemia.
*Increased level of cortisol*
- **Cortisol** is a key **stress hormone** that promotes **gluconeogenesis** (production of glucose from non-carbohydrate sources) and **glycogenolysis** (breakdown of glycogen to glucose).
- Elevated cortisol levels directly lead to an increase in blood glucose, causing hyperglycemia.
Metabolic Syndrome Indian Medical PG Question 3: Mr. Murali has 126 mg/dl of fasting plasma glucose. His venous plasma glucose 2h after ingestion of 75g oral glucose load is 149 mg/dl. This patient comes under which stage of WHO diagnostic criteria of diabetes & intermediate hyperglycemia?
- A. Decreased glucose resistance
- B. IFG - Impaired fasting glucose
- C. Diagnosis of diabetes (Correct Answer)
- D. Impaired glucose tolerance
Metabolic Syndrome Explanation: **Diagnosis of diabetes**
- The **fasting plasma glucose (FPG)** of 126 mg/dL meets the WHO criterion for **diabetes**, which is FPG ≥ 126 mg/dL [1].
- Although the 2-hour post-glucose load (149 mg/dL) falls within the **impaired glucose tolerance (IGT)** range (140-199 mg/dL), the elevated fasting glucose alone is sufficient for a diabetes diagnosis according to WHO guidelines.
*Decreased glucose resistance*
- This term is not a standard diagnostic category recognized by the WHO for glucose metabolism disorders.
- Glucose resistance is more commonly associated with conditions like **insulin resistance** rather than a specific diagnostic stage [1].
*IFG - Impaired fasting glucose*
- **Impaired fasting glucose (IFG)** is defined by a fasting plasma glucose level between 100 mg/dL and 125 mg/dL.
- Mr. Murali's fasting glucose of 126 mg/dL is higher than the upper limit for IFG [1].
*Impaired glucose tolerance*
- **Impaired glucose tolerance (IGT)** is defined by a 2-hour post-glucose load plasma glucose level between 140 mg/dL and 199 mg/dL.
- While Mr. Murali's 2-hour reading of 149 mg/dL falls within this range, the elevated fasting glucose level takes precedence for the overall diagnosis [1].
Metabolic Syndrome Indian Medical PG Question 4: The most appropriate management approach for anorexia nervosa includes:
- A. Immediate high-calorie diet with rapid weight gain
- B. Strict bed rest with minimal physical activity
- C. Antipsychotic medications as first-line treatment
- D. Multidisciplinary approach with psychological therapy and nutritional rehabilitation (Correct Answer)
Metabolic Syndrome Explanation: ***Multidisciplinary approach with psychological therapy and nutritional rehabilitation***
- This is the **gold standard** and most appropriate management approach for **anorexia nervosa** according to all major guidelines (APA, NICE, IPS).
- The multidisciplinary team includes: **psychiatrists, psychologists, dietitians, physicians**, and social workers working collaboratively.
- **Psychological therapy** (particularly **CBT-E** for adults and **Family-Based Therapy/FBT** for adolescents) addresses distorted body image, eating behaviors, and underlying psychological factors.
- **Nutritional rehabilitation** involves gradual, monitored weight restoration to prevent **refeeding syndrome** while addressing nutritional deficiencies.
- **Medical monitoring** for complications (cardiovascular, electrolyte imbalances, bone health) is integrated throughout treatment.
- This comprehensive approach addresses both the acute medical needs and long-term recovery, with evidence showing best outcomes.
*Strict bed rest with minimal physical activity*
- While temporary bed rest may be used in cases of **severe medical instability** (very low heart rate, severe electrolyte disturbances), it is not the overall management "approach."
- Prolonged bed rest can worsen outcomes by causing **muscle wasting**, **bone density loss**, and psychological dependence.
- Modern guidelines emphasize **gradual mobilization** with medical supervision rather than strict bed rest.
- Bed rest is a specific medical intervention, not a comprehensive management strategy.
*Immediate high-calorie diet with rapid weight gain*
- Rapid refeeding is dangerous and can cause **refeeding syndrome**, characterized by severe shifts in **phosphate, potassium, and magnesium** levels.
- Complications include **cardiac arrhythmias**, **respiratory failure**, and **seizures**.
- Proper nutritional rehabilitation starts with **lower calories** (30-40 kcal/kg/day initially) and increases gradually under close monitoring.
*Antipsychotic medications as first-line treatment*
- **Antipsychotics are NOT first-line treatment** for anorexia nervosa.
- Limited evidence for efficacy; **olanzapine** may be used as adjunct for severe anxiety or obsessive thoughts about food.
- Medications alone are insufficient; psychological and nutritional interventions are essential.
- May be considered for comorbid conditions but not as primary treatment.
Metabolic Syndrome Indian Medical PG Question 5: Obesity predisposes to all, except ?
- A. Diabetes
- B. Peptic ulcer disease (Correct Answer)
- C. Breast cancer
- D. Colon cancer
Metabolic Syndrome Explanation: ***Peptic ulcer disease***
- **Obesity** is generally **not considered a direct risk factor** for peptic ulcer disease; instead, factors like *H. pylori* infection and NSAID use are primary causes.
- While comorbidities associated with obesity might indirectly influence gastric health, obesity itself doesn't directly predispose to ulcer formation.
*Diabetes*
- **Obesity**, particularly **abdominal obesity**, greatly increases the risk of **insulin resistance** and **Type 2 Diabetes Mellitus**.
- Excess adipose tissue contributes to systemic inflammation and alters glucose metabolism.
*Breast cancer*
- **Obesity** is a significant risk factor for **postmenopausal breast cancer** due to increased estrogen production in adipose tissue.
- It also promotes chronic inflammation, which can contribute to cancer development and progression.
*Colon cancer*
- **Obesity** is linked to an increased risk of **colorectal cancer** due to associated **insulin resistance**, chronic inflammation, and altered hormone levels.
- These factors can stimulate cell proliferation and inhibit apoptosis in the colon.
Metabolic Syndrome Indian Medical PG Question 6: Which hormone is primarily responsible for insulin resistance during pregnancy?
- A. Estrogen
- B. HPL (Correct Answer)
- C. Progesterone
- D. GH
Metabolic Syndrome Explanation: ***HPL***
- **Human placental lactogen (HPL)**, also known as **chorionic somatomammotropin**, directly induces maternal insulin resistance to ensure a continuous supply of glucose to the fetus.
- HPL levels rise throughout pregnancy, peaking in the third trimester, correlating with increasing insulin resistance.
*Estrogen*
- While **estrogen** levels are high in pregnancy, its primary role is in supporting uterine growth and maintaining the pregnancy, not directly causing significant insulin resistance.
- High estrogen levels can enhance insulin sensitivity in some contexts, contrasting with the overall insulin resistance of pregnancy.
*Progesterone*
- **Progesterone** is crucial for maintaining pregnancy and relaxing smooth muscle but does not directly cause the marked insulin resistance seen in gestation.
- It works synergistically with other hormones but is not the primary driver of glucose intolerance in pregnancy.
*GH*
- **Growth hormone (GH)** does contribute to insulin resistance in non-pregnant individuals and at high levels can cause insulin resistance, but it is not the primary hormone responsible for the unique physiological insulin resistance of pregnancy.
- While GH is present, **HPL** is the dominant somatotropic hormone of pregnancy directly impacting glucose metabolism.
Metabolic Syndrome Indian Medical PG Question 7: According to NCEP-ATP III, which among the following have not been included in metabolic syndrome?
- A. High LDL (Correct Answer)
- B. Central Obesity
- C. Hypertriglyceridemia
- D. Hypertension
Metabolic Syndrome Explanation: ***High LDL***
- The **NCEP-ATP III criteria** for metabolic syndrome do not specifically include **high LDL cholesterol** as a diagnostic component.
- While high LDL cholesterol is an independent risk factor for cardiovascular disease [1], it is not one of the five required criteria for metabolic syndrome.
*Central Obesity*
- **Central obesity**, defined by an elevated waist circumference, is a key diagnostic criterion for metabolic syndrome according to NCEP-ATP III.
- It reflects increased visceral fat, which is metabolically active and contributes to insulin resistance.
*Hypertriglyceridemia*
- **Elevated serum triglycerides** (≥ 150 mg/dL or 1.7 mmol/L) is one of the essential diagnostic criteria for metabolic syndrome as defined by NCEP-ATP III.
- This reflects an imbalance in lipid metabolism, often associated with insulin resistance [2].
*Hypertension*
- **Hypertension** (blood pressure ≥ 130/85 mmHg or being on antihypertensive medication) is a core component of the metabolic syndrome criteria.
- It signifies endothelial dysfunction and increased cardiovascular risk.
Metabolic Syndrome Indian Medical PG Question 8: A diabetic patient's fasting blood glucose level is found to be $160 \mathrm{mg} / \mathrm{dL}$. What will you advise the patient regarding non-pharmacological management?
- A. At least 25-35 g of dietary fibre
- B. <30 % of the calories should come from fat (Correct Answer)
- C. Dietary cholesterol <300 mg per day
- D. <2.3 g sodium intake every day
Metabolic Syndrome Explanation: ***<30 % of the calories should come from fat***
- Reducing dietary fat intake to less than 30% of total calories is a crucial non-pharmacological strategy for diabetic patients to manage blood glucose levels and prevent cardiovascular complications [1].
- Excess dietary fat, especially saturated and trans fats, can contribute to insulin resistance and weight gain, both of which negatively impact glycemic control [1].
*At least 25-35 g of dietary fibre*
- While adequate dietary fiber (typically 25-30g for adults, sometimes up to 35g for men) is beneficial for managing blood glucose, it is generally recommended as a baseline for healthy eating and not the primary or most impactful intervention to address a fasting glucose of 160 mg/dL [1].
- Fiber helps slow glucose absorption and can improve insulin sensitivity, but a specific "at least 25-35g" statement without further context on total caloric intake or other macronutrient distribution might not be the most targeted advice for this specific glucose level [1].
*Dietary cholesterol <300 mg per day*
- Limiting dietary cholesterol to less than 300 mg per day is a general recommendation for cardiovascular health, which is particularly important for diabetic patients due to their increased risk of atherosclerosis [2].
- However, for directly addressing a fasting blood glucose of 160 mg/dL, focusing on overall fat intake and carbohydrate quality would have a more immediate impact on glucose control than dietary cholesterol alone.
*<2.3 g sodium intake every day*
- Restricting sodium intake to less than 2.3 g per day is recommended for managing hypertension and reducing cardiovascular risk, which is often comorbid with diabetes [2].
- While important for overall health in diabetic patients, this recommendation does not directly target blood glucose control and would not be the primary non-pharmacological advice for a fasting glucose of 160 mg/dL.
Metabolic Syndrome Indian Medical PG Question 9: Which of the following anti-gout drugs acts by inhibiting the enzyme xanthine oxidase?
- A. Rasburicase
- B. Allopurinol (Correct Answer)
- C. Probenecid
- D. Sulfinpyrazone
Metabolic Syndrome Explanation: ***Allopurinol***
- **Allopurinol** is a purine analog that **inhibits xanthine oxidase**, thereby preventing the conversion of hypoxanthine and xanthine to uric acid.
- Allopurinol is metabolized to **oxypurinol (alloxanthine)**, which acts as a **competitive inhibitor** of xanthine oxidase.
- This action leads to a reduction in **serum uric acid levels**, which is crucial for preventing and treating gout attacks.
*Probenecid*
- **Probenecid** is a **uricosuric agent** that acts by inhibiting the reabsorption of uric acid in the renal tubules, leading to increased excretion of uric acid in the urine.
- It does not affect the production of uric acid by inhibiting xanthine oxidase.
*Rasburicase*
- **Rasburicase** is a recombinant **uricase enzyme** that catalyzes the oxidation of uric acid to **allantoin**, a more water-soluble compound that is easily excreted by the kidneys.
- It is primarily used for the management of **tumor lysis syndrome** and severe hyperuricemia, not by inhibiting xanthine oxidase.
*Sulfinpyrazone*
- **Sulfinpyrazone** is another **uricosuric agent** similar to probenecid, working by inhibiting the renal tubular reabsorption of uric acid.
- Its mechanism of action is distinct from xanthine oxidase inhibition and focuses on enhancing uric acid excretion rather than reducing its production.
Metabolic Syndrome Indian Medical PG Question 10: Which antipsychotic is most likely to cause metabolic syndrome?
- A. Olanzapine
- B. Haloperidol
- C. Clozapine (Correct Answer)
- D. Risperidone
Metabolic Syndrome Explanation: ***Clozapine***
- **Clozapine** has the **highest risk** of causing **metabolic syndrome** among all antipsychotics, characterized by significant **weight gain**, **dyslipidemia**, **insulin resistance**, and **new-onset diabetes mellitus**.
- Multiple meta-analyses consistently show clozapine causes the **most severe metabolic disturbances**, with weight gain often exceeding 5-10 kg in the first year of treatment.
- The mechanism involves potent antagonism of **5-HT2C receptors**, **histamine H1 receptors**, and effects on **leptin signaling** and **glucose metabolism**.
- Its use requires careful **metabolic monitoring** including baseline and periodic measurement of weight, BMI, waist circumference, fasting glucose, and lipid profile.
- Despite these risks, clozapine remains the gold standard for **treatment-resistant schizophrenia**, but its metabolic effects necessitate risk-benefit consideration.
*Olanzapine*
- **Olanzapine** has the **second-highest risk** for metabolic syndrome after clozapine, also causing significant weight gain and metabolic disturbances.
- Like clozapine, it has potent **5-HT2C** and **H1 antagonism**, leading to increased appetite and altered glucose-lipid metabolism.
- The metabolic risk is substantial but generally slightly less severe than clozapine in head-to-head comparisons.
*Haloperidol*
- **Haloperidol** is a first-generation (typical) antipsychotic with a **significantly lower risk** of metabolic syndrome compared to clozapine or olanzapine.
- Its primary adverse effects are **extrapyramidal symptoms** (akathisia, dystonia, parkinsonism) and **hyperprolactinemia** rather than metabolic disturbances.
- It causes minimal weight gain and has low risk for diabetes or dyslipidemia.
*Risperidone*
- **Risperidone** has an **intermediate metabolic risk** among atypical antipsychotics, lower than clozapine or olanzapine but higher than some others like aripiprazole or ziprasidone.
- While it can cause weight gain and metabolic changes, the magnitude is generally more modest.
- Its more prominent side effect is **hyperprolactinemia** due to potent D2 antagonism.
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