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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Which lung volume cannot be measured by simple spirometry?
सही उत्तर: ख) Residual volume
Residual volume remains in the lungs after maximal expiration and never leaves the lungs, so it needs helium dilution, nitrogen washout or body plethysmography. Consequently FRC and total lung capacity also cannot be measured by simple spirometry.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Pulmonary surfactant is secreted by:
सही उत्तर: ख) Type II alveolar cells
Type II pneumocytes produce surfactant (mainly dipalmitoylphosphatidylcholine), which lowers surface tension and prevents alveolar collapse. Type I cells are thin cells that form most of the gas-exchange surface.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following shifts the oxygen–haemoglobin dissociation curve to the right?
सही उत्तर: घ) Increased 2,3-bisphosphoglycerate
A right shift (lower affinity, easier unloading) is caused by increased 2,3-BPG, H+ (acidosis), PCO2 and temperature. Alkalosis and low PCO2 shift the curve to the left, as does fetal haemoglobin.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The Frank–Starling law of the heart states that stroke volume increases with an increase in:
सही उत्तर: क) End-diastolic volume (preload)
Greater end-diastolic filling stretches myocardial fibres toward optimal overlap, increasing force of contraction and stroke volume. Increased afterload, in contrast, tends to reduce stroke volume.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The dicrotic notch on the aortic pressure curve is produced by:
सही उत्तर: घ) Closure of the aortic valve
When ventricular pressure falls below aortic pressure, brief backflow closes the aortic valve and creates the incisura (dicrotic notch). It also coincides with the second heart sound (A2).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The plateau phase (phase 2) of the ventricular muscle action potential is mainly due to:
सही उत्तर: ख) Influx of calcium through L-type channels
During phase 2, slow inward Ca2+ current through L-type channels balances outward K+ current, producing the plateau. Phase 0 (rapid upstroke) is due to fast Na+ influx.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The normal glomerular filtration rate (GFR) in a healthy young adult is approximately:
सही उत्तर: क) 125 mL/min
Normal GFR is about 125 mL/min (about 180 L/day). Renal plasma flow is about 650 mL/min and renal blood flow about 1200 mL/min, giving a filtration fraction near 20%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Which of the following is NOT a rotator cuff muscle?
सही उत्तर: ग) Teres major
The rotator cuff consists of supraspinatus, infraspinatus, teres minor and subscapularis (SITS). Teres major inserts on the humerus but does not blend with the joint capsule and is not part of the cuff.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A positive Trendelenburg sign (pelvis drops on the unsupported side) indicates injury to the:
सही उत्तर: ग) Superior gluteal nerve
The superior gluteal nerve supplies gluteus medius and minimus, which stabilise the pelvis when standing on one leg; weakness lets the opposite side of the pelvis sag. The inferior gluteal nerve supplies gluteus maximus, affecting rising from sitting and climbing stairs.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Taste sensation from the anterior two-thirds of the tongue is carried by the:
सही उत्तर: ख) Chorda tympani branch of the facial nerve
Taste from the anterior two-thirds travels in the chorda tympani (facial nerve), while general sensation comes via the lingual nerve (V3). The posterior one-third is served by the glossopharyngeal nerve for both taste and general sensation.
💬 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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