मेडिसिन – Medicine MCQ
मेडिसिन – MD/MS प्रवेश
Medicine · MECEE-PG – MD/MS/MDS Entrance · ५४२ प्रश्न
५४२ प्रश्न उपलब्ध। मोड छान्नुहोस्:
मेडिसिन: 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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Neurocysticercosis, an important cause of seizures in Nepal, is caused by the larval stage of:
सही उत्तर: ग) Taenia solium
Ingesting Taenia solium eggs (faeco-oral) causes cysticerci to develop in the brain. Taenia saginata (beef tapeworm) does not cause cysticercosis in humans.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Typical CSF findings in acute bacterial meningitis are:
सही उत्तर: ख) Raised neutrophils, high protein and low glucose
Bacterial meningitis causes a neutrophilic pleocytosis, raised protein and low CSF glucose. Viral meningitis usually shows lymphocytes with normal glucose.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Hemisection of the spinal cord (Brown-Séquard syndrome) causes, below the lesion:
सही उत्तर: क) Ipsilateral weakness and loss of proprioception with contralateral loss of pain and temperature
The corticospinal tract and dorsal columns cross in the medulla, so their loss is ipsilateral, while the spinothalamic tract crosses near its level of entry, so pain and temperature loss is contralateral. Bilateral pain/temperature loss with preserved proprioception is anterior cord syndrome.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In Bell's palsy, which finding distinguishes it from an upper motor neuron facial palsy (e.g. stroke)?
सही उत्तर: घ) The forehead is also paralysed
Bell's palsy is a lower motor neuron lesion of the facial nerve, so the whole half of the face including the forehead is weak. In UMN lesions the forehead is spared because of bilateral cortical supply.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The drug given to prevent delayed cerebral ischaemia due to vasospasm after subarachnoid haemorrhage is:
सही उत्तर: ग) Nimodipine
Oral nimodipine improves outcome after aneurysmal SAH by reducing ischaemic deficits from vasospasm. Nifedipine is not used because it causes marked hypotension without the proven benefit.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Parkinson disease results mainly from degeneration of dopaminergic neurons in the:
सही उत्तर: ख) Substantia nigra pars compacta
Loss of nigrostriatal dopaminergic neurons in the substantia nigra pars compacta causes bradykinesia, rigidity and resting tremor. Lewy bodies (alpha-synuclein) are the pathological hallmark.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Raised CSF protein with a normal CSF cell count (albuminocytological dissociation) is typical of:
सही उत्तर: क) Guillain–Barré syndrome
GBS is an acute immune-mediated demyelinating polyneuropathy with ascending weakness and areflexia. Bacterial and tuberculous meningitis show raised cell counts.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Myasthenia gravis is most commonly caused by antibodies against:
सही उत्तर: घ) Postsynaptic acetylcholine receptors
Antibodies against nicotinic acetylcholine receptors cause fatigable weakness in myasthenia gravis. Antibodies to presynaptic calcium channels cause Lambert–Eaton syndrome.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Bilateral hilar lymphadenopathy with non-caseating granulomas and raised serum ACE suggests:
सही उत्तर: ग) Sarcoidosis
Sarcoidosis is a multisystem granulomatous disease with typical non-caseating granulomas and bilateral hilar lymphadenopathy. Tuberculosis produces caseating granulomas.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Airflow obstruction on spirometry is confirmed by a post-bronchodilator FEV1/FVC ratio of less than:
सही उत्तर: ख) 0.70
GOLD defines persistent airflow limitation as post-bronchodilator FEV1/FVC
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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