चिकित्सा स्नातकोत्तर प्रवेश (MECEE-PG) MD / MS / MDS प्रवेश परीक्षा तयारी
चिकित्सा स्नातकोत्तर प्रवेश (MECEE-PG) – MD / MS / MDS प्रवेश परीक्षा
MECEE-PG – MD/MS/MDS · MECEE-PG (MD/MS/MDS)
२,८६५ प्रश्न उपलब्ध। मोड छान्नुहोस्:
MD/MS/MDS प्रवेश: प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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In the context of human physiology, what is the primary role of angiotensin II?
सही उत्तर: ख) Stimulating aldosterone release to increase sodium reabsorption
Angiotensin II is a potent vasoconstrictor that plays a crucial role in regulating blood pressure. Its primary action is to cause constriction of arterioles, increasing peripheral vascular resistance and thus elevating blood pressure. Option 2 describes aldosterone’s effect, while options 3 and 4 misrepresent angiotensin II's function.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following statements accurately reflects the physiological significance of phosphatidylcholine in cell membranes?
सही उत्तर: ग) It is crucial for maintaining membrane fluidity, particularly at higher temperatures
Phosphatidylcholine is the most abundant phospholipid in biological membranes. Its saturated fatty acid chains contribute significantly to membrane fluidity by disrupting tight packing and allowing for movement of lipids and proteins – making this the correct answer. The other options represent different roles of phospholipids or related molecules.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following best describes the primary function of carbonic anhydrase within red blood cells?
सही उत्तर: ख) Catalyzing the hydration of bicarbonate to form carbonic acid
Carbonic anhydrase is a critical enzyme in red blood cells that catalyzes the hydration of carbon dioxide (CO2) to form carbonic acid (H2CO3). This reaction is fundamental for maintaining blood pH and facilitating CO2 transport from tissues to the lungs. The other options describe secondary functions or processes unrelated to the primary role of this enzyme.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A young woman presents with intermittent, bright red nipple discharge from a single duct in her left breast. After thorough clinical examination, which of the following is the most likely etiology?
सही उत्तर: ग) Invasive ductal carcinoma
Bright red nipple discharge from a single duct in a young woman is classically associated with invasive ductal carcinoma. While benign lesions can cause discharge, the colour and presentation are more indicative of malignancy.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 60-year-old male presents with intermittent pain in the right inguinal region. Physical examination reveals a palpable bulge that increases with coughing and straining. The most accurate description of this condition is:
सही उत्तर: क) Indirect inguinal hernia
A direct inguinal hernia occurs through the aponeurosis of the abdominal muscles, presenting as a bulge that moves with muscle contraction. The other options represent different types of hernias arising from distinct anatomical locations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 35-year-old male presents with right upper quadrant pain, fever, and nausea. The initial imaging investigation for suspected acute calculous cholecystitis is most likely:
सही उत्तर: ख) Ultrasound of the abdomen
Ultrasound is the preferred initial imaging modality for suspected acute cholecystitis due to its ability to visualize gallstones and inflammation. CT scans are often used if ultrasound results are inconclusive; however, MRI and endoscopy are not typically first-line investigations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A patient presents with dysphagia, regurgitation of undigested food, and chest pain suggestive of achalasia cardia. What is the gold-standard diagnostic investigation for confirming this diagnosis?
सही उत्तर: ग) Esophageal manometry and pH monitoring
Esophageal manometry and pH monitoring are the gold-standard investigations for achalasia cardia as they directly assess esophageal motility dysfunction. While endoscopy can visualize structural abnormalities, it doesn't capture the characteristic impaired peristalsis.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following structures forms part of the anatomical landmark commonly referred to as ‘Calot’s Triangle’ prior to performing cholecystectomy?
सही उत्तर: ग) Cystic duct
The common bile duct is the key structure enclosed within Calot's triangle. Identifying its position helps surgeons avoid injury during cholecystectomy. The other options are adjacent structures but not defined within the triangular space.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A newborn infant is diagnosed with cystic fibrosis based on a sweat chloride concentration exceeding a specific threshold. Which biochemical defect underlies this condition?
सही उत्तर: ख) Mutation in the CFTR gene
Sweat chloride testing measures abnormally high levels of chloride ions, which is directly related to impaired function of the cystic fibrosis transmembrane conductance regulator (CFTR) protein - the primary defect in cystic fibrosis. The other options represent alternative mechanisms contributing to respiratory issues.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A 15-year-old female presents with primary amenorrhea, an absent uterus, normal breasts, and pubic hair. Her karyotype is 46,XX. What is the MOST likely diagnosis?
सही उत्तर: क) Turner Syndrome (45,X)
The combination of primary amenorrhea, absent uterus, and normal female external genitalia strongly suggests a chromosomal abnormality where the X chromosome is not properly expressed. Turner Syndrome (45,X) is the most likely explanation given the classic presentation.”}],
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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