Outpatient Treatment Approaches — MCQs
A CKD patient develops serum K+ 7.2 mEq/L without ECG changes. Best initial management?
All of the following are known functions of hypothalamus except
In which of the following conditions is behavior therapy considered most effective?
Indoor management of anorexia nervosa is done on priority patients with:-
Bulimia nervosa is treated with
Best predictor of good prognosis in anorexia nervosa is:
Best predictor of good prognosis in anorexia nervosa is:
Which of the following is NOT true about anorexia nervosa?
Which of the following features is not seen in Anorexia Nervosa?
Which eating disorder is characterized by normal weight?
Outpatient Treatment Approaches Indian Medical PG Practice Questions and MCQs
Question 1: A CKD patient develops serum K+ 7.2 mEq/L without ECG changes. Best initial management?
- A. Emergency dialysis
- B. Sodium polystyrene
- C. Insulin with glucose
- D. Calcium gluconate (Correct Answer)
Explanation: **Calcium gluconate** - **Calcium gluconate** is the best initial management for severe hyperkalemia, particularly when the potassium level is very high (above 6.5 mEq/L) even without ECG changes [1]. It acts quickly to directly stabilize the cardiac membrane by **antagonizing the effects of potassium on myocardial excitability**, thereby preventing life-threatening arrhythmias [1]. - It provides immediate cardioprotection, buying time for other therapies to shift potassium into cells or remove it from the body. *Emergency dialysis* - While **dialysis** is the most effective way to remove potassium from the body, it is typically reserved for cases of severe, refractory hyperkalemia, or when other therapies have failed [3]. - It is not the *initial* management for immediate cardiac stabilization, especially if no ECG changes are present and calcium can be administered more rapidly. *Sodium polystyrene* - **Sodium polystyrene sulfonate (Kayexalate)** is a potassium-binding resin that works in the gastrointestinal tract to exchange sodium for potassium, thus removing potassium from the body. - Its onset of action is slow (hours to days), making it inappropriate for acute, severe hyperkalemia requiring immediate intervention. *Insulin with glucose* - **Insulin with glucose** therapy promotes the intracellular shift of potassium, temporarily lowering serum potassium levels [2]. - While effective, its onset of action is typically 15-30 minutes, and it functions as a temporary measure to redistribute potassium, not to acutely stabilize the cardiac membrane, which is the primary concern when potassium is severely elevated.
Question 2: All of the following are known functions of hypothalamus except
- A. Temperature regulation
- B. Hypophyseal control
- C. Food intake
- D. Increase in heart rate with exercise (Correct Answer)
Explanation: ***Increase in heart rate with exercise*** - The **hypothalamus** has an indirect role in cardiovascular responses during exercise, primarily through its influence on the **autonomic nervous system** to maintain homeostasis. - However, the primary control of increased heart rate during exercise originates from the **medulla oblongata** and the **motor cortex**, which directly modulates the sympathetic nervous system to increase cardiac output. *Temperature regulation* - The **hypothalamus** contains thermoregulatory centers that monitor and adjust body temperature through mechanisms such as **sweating** and **shivering**. - This function is a fundamental aspect of maintaining **homeostasis**. *Hypophyseal control* - The **hypothalamus** directly controls the **pituitary gland** (hypophysis) by producing releasing and inhibiting hormones that regulate the secretion of pituitary hormones. - This neuroendocrine function is crucial for controlling various **endocrine axes**. *Food intake* - The **hypothalamus** plays a key role in regulating appetite and satiety, with specific nuclei like the **arcuate nucleus** integrating signals related to hunger and fullness. - This control is essential for maintaining **energy balance**.
Question 3: In which of the following conditions is behavior therapy considered most effective?
- A. Panic Attack
- B. Psychosis
- C. Obsessive-Compulsive Disorder (OCD) (Correct Answer)
- D. Generalized Anxiety Disorder
Explanation: ***Obsessive-Compulsive Disorder (OCD)*** - **Exposure and Response Prevention (ERP)**, a type of behavior therapy, is the gold standard and most effective treatment for OCD. - ERP directly targets the **obsessions** and **compulsions** by gradually exposing individuals to feared situations without allowing them to perform their rituals. - OCD shows the **highest response rates** to pure behavior therapy compared to other psychiatric conditions. *Psychosis* - While supportive therapy and cognitive behavioral therapy for psychosis (CBTp) can be helpful, **behavior therapy alone is not considered the primary or most effective treatment** for core psychotic symptoms. - Management of psychosis primarily relies on **antipsychotic medications** to address symptoms like hallucinations and delusions. *Panic Attack* - Behavior therapy and CBT are effective for **Panic Disorder**, but the effectiveness is somewhat lower than for OCD. - Treatment for panic disorder often requires a **combination of behavioral and cognitive techniques** rather than pure behavior therapy alone. - Management typically includes breathing exercises, exposure to physical sensations, and cognitive restructuring. *Generalized Anxiety Disorder* - **Cognitive Behavioral Therapy (CBT)**, which includes behavioral components, is highly effective for GAD, but the **cognitive elements are essential** for addressing worry and rumination. - Pure behavior therapy (e.g., systematic desensitization) is less effective for GAD compared to OCD, as GAD involves pervasive cognitive distortions that require cognitive restructuring.
Question 4: Indoor management of anorexia nervosa is done on priority patients with:-
- A. Depression
- B. Amenorrhea
- C. Binging episodes
- D. Weight for height less than 75% of normal (Correct Answer)
Explanation: ***Weight for height less than 75% of normal*** - A **weight for height less than 75% of normal** (or **BMI <15 kg/m²**) indicates severe **malnutrition** and a high risk of medical complications, necessitating urgent inpatient care. - This level of **underweight** is a critical indicator for hospital admission in **anorexia nervosa** to prevent severe organ dysfunction, refeeding syndrome, and even death. *Depression* - While **depression** is a common comorbidity with **anorexia nervosa** and often requires treatment, it does not, by itself, warrant immediate inpatient management unless there are acute **suicidal risks**. - **Depression** is usually managed in an outpatient setting initially, with hospitalization being reserved for severe cases where safety is compromised. *Amenorrhea* - **Amenorrhea** (absence of menstruation) is a common symptom of **anorexia nervosa** due to hormonal imbalances caused by low body weight. - Though an indicator of significant caloric restriction, **amenorrhea** alone is not typically an immediate criterion for inpatient admission unless accompanied by other severe physical complications. *Binging episodes* - While **binging episodes** can occur in **anorexia nervosa** (specifically the binge-purging subtype) and can lead to electrolyte imbalances or medical complications, they are not the primary, stand-alone trigger for immediate inpatient admission. - The severity of **binging** and associated **purging behaviors** must be evaluated in the context of overall medical stability and weight to determine the appropriate level of care.
Question 5: Bulimia nervosa is treated with
- A. Clozapine
- B. Reserpine
- C. Pimozide
- D. Escitalopram (Correct Answer)
Explanation: ***Escitalopram*** - **SSRIs** like escitalopram are considered first-line pharmacological treatment for **bulimia nervosa**, especially when combined with **psychotherapy**. - They help reduce the frequency of **binge-eating** and **purging** episodes by modulating serotonin levels. *Clozapine* - This is an **atypical antipsychotic** primarily used for **treatment-resistant schizophrenia**. - It has significant side effects, including **agranulocytosis**, and is not indicated for eating disorders. *Reserpine* - An **antihypertensive** and **antipsychotic** drug that depletes catecholamines and serotonin from central neurons. - Due to its severe side effects, including **depression** and **parkinsonism**, it is rarely used today and not for eating disorders. *Pimozide* - A **first-generation antipsychotic** specifically approved for treating **Tourette's syndrome** but sometimes used off-label for severe tics. - It is not indicated for the treatment of bulimia nervosa and may carry significant **cardiac side effects**.
Question 6: Best predictor of good prognosis in anorexia nervosa is:
- A. Early treatment
- B. Higher BMI at diagnosis
- C. Shorter duration (Correct Answer)
- D. Supportive family
Explanation: ***Shorter duration*** - **Shorter duration of illness** before treatment is consistently identified as one of the strongest predictors of good prognosis in anorexia nervosa. - Duration encompasses the total time the illness has existed, capturing the chronicity and entrenchment of maladaptive eating behaviors, psychological patterns, and physiological complications. - Patients with **brief illness duration** before intervention have higher rates of **full recovery** (up to 50-70% in some studies) compared to those with chronic illness (20-30% recovery rates). - Shorter duration indicates less time for the development of severe medical complications (osteoporosis, cardiac abnormalities) and entrenched psychological patterns that are harder to reverse. *Early treatment* - While **early treatment initiation** is extremely important and strongly correlated with better outcomes, it is typically a function of recognizing and intervening in an illness of short duration. - The benefit of early treatment is largely because it prevents the illness from becoming chronic; thus, duration remains the more fundamental prognostic indicator. - Both concepts overlap significantly, but duration captures the complete timeframe of illness pathology. *Higher BMI at diagnosis* - A **higher BMI at diagnosis** suggests less severe weight loss and may indicate less severe restriction, but it is not as strong a predictor as duration. - Patients can have relatively higher BMI but still have chronic illness with poor prognosis if the duration has been extended. *Supportive family* - A **supportive family** is crucial for treatment adherence, recovery, and relapse prevention, and is indeed a positive prognostic factor. - However, family support alone cannot overcome the physiological and psychological damage of prolonged illness duration. - In pediatric/adolescent populations, family-based therapy (FBT) outcomes are best when the **illness duration is short** at treatment onset.
Question 7: Best predictor of good prognosis in anorexia nervosa is:
- A. Shorter duration (Correct Answer)
- B. Supportive family
- C. Early treatment
- D. Higher BMI at diagnosis
Explanation: ***Shorter duration of illness*** - **Shorter duration** at the time of presentation is the most consistently cited predictor of good prognosis in anorexia nervosa across psychiatric literature. - Patients with **brief illness duration** (typically <6 months) have significantly higher rates of complete recovery and remission. - Longer duration leads to entrenchment of **maladaptive eating patterns**, more severe medical complications, and greater resistance to treatment interventions. - Early recognition and presentation inherently means shorter duration, making this the most actionable and reliable prognostic indicator. *Early treatment* - While initiating treatment early is therapeutically crucial, it is an **intervention** rather than a prognostic predictor. - Early treatment is beneficial precisely because it prevents progression to **longer illness duration**. - The effectiveness of treatment depends on multiple factors including patient motivation, comorbidities, and treatment modality. *Supportive family* - A supportive family environment facilitates recovery by providing **emotional support** and reinforcing treatment adherence. - Family-based therapy (FBT) is particularly effective in adolescents with anorexia nervosa. - However, family support alone does not predict outcome as strongly as **illness duration** or other core clinical features. *Higher BMI at diagnosis* - Higher BMI at presentation indicates less severe **malnutrition** and reduced immediate medical risk. - However, BMI alone does not correlate strongly with psychological recovery, as the underlying **eating disorder psychopathology** (body image distortion, fear of weight gain) requires addressing regardless of weight. - Some patients may maintain relatively higher BMI while still meeting diagnostic criteria and having poor outcomes.
Question 8: Which of the following is NOT true about anorexia nervosa?
- A. Leukopenia
- B. Amenorrhea
- C. Self-induced vomiting (Correct Answer)
- D. More common in adult females
Explanation: **Explanation:** The core psychopathology of **Anorexia Nervosa (AN)** is a distorted body image and an intense fear of gaining weight, leading to restricted energy intake and significantly low body weight. **Why "Self-induced vomiting" is the correct answer:** While self-induced vomiting *can* occur in the "Binge-eating/Purging type" of Anorexia, it is **not a mandatory diagnostic feature** or a universal finding. In contrast, self-induced vomiting is a hallmark and often defining compensatory behavior of **Bulimia Nervosa**. In Anorexia, the primary mechanism of weight loss is typically severe caloric restriction and excessive exercise. **Analysis of other options:** * **Leukopenia (A):** This is a common hematological complication of starvation in AN due to bone marrow hypoplasia (gelatinous transformation of marrow). * **Amenorrhea (B):** Though no longer a strict DSM-5 diagnostic criterion, it remains a classic clinical feature caused by hypogonadotropic hypogonadism (low FSH/LH due to hypothalamic dysfunction). * **More common in adult females (D):** AN has a significant female-to-male preponderance (roughly 10:1), typically peaking in adolescence and young adulthood. **NEET-PG High-Yield Pearls:** 1. **Most common cause of death:** Suicide (psychiatric) or Cardiac Arrhythmias (medical, often due to hypokalemia). 2. **Refeeding Syndrome:** Characterized by **Hypophosphatemia** (hallmark), hypokalemia, and hypomagnesemia when food is reintroduced too rapidly. 3. **Physical signs:** Lanugo hair, bradycardia, hypotension, and "Russell’s sign" (calluses on knuckles if purging is present). 4. **Treatment:** Nutritional rehabilitation is the priority. Family-Based Therapy (FBT) is the gold standard for adolescents.
Question 9: Which of the following features is not seen in Anorexia Nervosa?
- A. Decreased total brain volume
- B. Lowered metabolic rate
- C. Impaired regulation in growth hormone levels
- D. Decreased serum protein (Correct Answer)
Explanation: **Explanation:** In **Anorexia Nervosa (AN)**, despite severe emaciation and malnutrition, the body employs remarkable compensatory mechanisms to maintain essential biochemical functions. **Why "Decreased serum protein" is the correct answer:** Counterintuitively, serum protein and albumin levels are typically **normal** in patients with Anorexia Nervosa. This is a classic "trap" in medical exams. The body prioritizes the synthesis of visceral proteins (like albumin) by breaking down somatic protein (muscle mass). Low serum protein is more characteristic of **Kwashiorkor** (protein-energy malnutrition) rather than the calorie-restricted starvation seen in AN. If an AN patient presents with low albumin, it usually indicates a very late stage of the disease or an alternative diagnosis. **Analysis of Incorrect Options:** * **A. Decreased total brain volume:** Chronic starvation leads to "pseudo-atrophy" of the brain, characterized by enlarged ventricles and reduced gray/white matter volume (reversible with refeeding). * **B. Lowered metabolic rate:** To conserve energy, the body enters a hypometabolic state. This manifests clinically as bradycardia, hypotension, and hypothermia. * **C. Impaired regulation in growth hormone (GH) levels:** In AN, there is a state of **GH resistance**. GH levels are actually **increased**, but Insulin-like Growth Factor-1 (IGF-1) is decreased, leading to impaired growth and regulatory feedback loops. **High-Yield Clinical Pearls for NEET-PG:** * **Most common cause of death:** Cardiac arrhythmias (due to electrolyte imbalances like hypokalemia) or Suicide. * **Endocrine hallmark:** Hypogonadotropic hypogonadism (leading to amenorrhea). * **Hematology:** Leukopenia is the most common blood abnormality. * **Refeeding Syndrome:** Watch for **Hypophosphatemia** when starting nutrition; it is the most critical electrolyte shift to monitor.
Question 10: Which eating disorder is characterized by normal weight?
- A. Anorexia nervosa
- B. Bulimia nervosa (Correct Answer)
- C. Binge eating disorder
- D. None of the above
Explanation: **Explanation:** The hallmark of **Bulimia Nervosa (BN)** is the maintenance of a **normal or near-normal body weight** (BMI ≥ 18.5 kg/m²). Patients engage in a cycle of binge eating followed by inappropriate compensatory behaviors (purging via vomiting, laxatives, or excessive exercise). Unlike other eating disorders, the caloric intake during binges is offset by these compensatory mechanisms, preventing significant weight loss or gain, which often makes the disorder "invisible" to family members. **Analysis of Incorrect Options:** * **Anorexia Nervosa (AN):** The defining clinical feature is **significantly low body weight** (BMI < 18.5 kg/m² in adults) due to restricted energy intake and an intense fear of gaining weight. Even the "Binge-eating/Purging type" of AN is distinguished from Bulimia by the presence of underweight status. * **Binge Eating Disorder (BED):** While patients binge, they do **not** engage in regular compensatory behaviors. Consequently, BED is most commonly associated with being **overweight or obese**. **Clinical Pearls for NEET-PG:** * **Russell’s Sign:** Calluses on the knuckles from self-induced vomiting (common in BN). * **Metabolic Profile:** Bulimia often presents with **Hypokalemia**, Hypochloremia, and **Metabolic Alkalosis** (due to loss of gastric HCl). * **Parotid Gland Swelling:** Sialadenosis is a frequent physical finding in purging-type Bulimia. * **Drug of Choice:** **Fluoxetine** (SSRI) is the only FDA-approved medication for Bulimia Nervosa, typically used at higher doses (60mg).
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