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Author Archives: Anonymous

Why does collateral reinnervation worsen force precision des…

Why does collateral reinnervation worsen force precision despite preserving muscle tissue?

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Preferential loss of fast-twitch fibers with aging primarily…

Preferential loss of fast-twitch fibers with aging primarily impairs which function?

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Grip strength and gait speed are powerful screening tools be…

Grip strength and gait speed are powerful screening tools because they:

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A 6-year-old is rescued from a house fire with heavy smoke e…

A 6-year-old is rescued from a house fire with heavy smoke exposure from burning furniture and plastics. She is tachypneic, confused, and hypotensive despite an adequate airway and supplemental oxygen with a normal SpO2 reading. A venous blood gas shows a markedly elevated lactate and, unexpectedly, a venous oxygen saturation that is much higher than typically seen in shock. What does this combination of findings suggest, and what is the underlying mechanism?

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A 10-year-old with ARDS is on volume control A/C (RR 20, VT…

A 10-year-old with ARDS is on volume control A/C (RR 20, VT 6 mL/kg, PEEP 10, FiO2 0.55). ABG: pH 7.32, PaCO2 54, PaO2 72. SpO2 is 94%. Which parameter adjustment most directly targets the elevated PaCO2?

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A 5-year-old presents with 12 days of fever, productive coug…

A 5-year-old presents with 12 days of fever, productive cough, and left-sided pleuritic chest pain not responding to outpatient amoxicillin. Exam: T 39.2°C, RR 36, SpO2 94% on RA, decreased breath sounds and dullness to percussion at the left base. Chest ultrasound reveals a large left pleural effusion with multiple internal septations (loculations). CT chest confirms complex parapneumonic effusion without lung abscess. Which management strategy is most appropriate?

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A 10-year-old has a BB gun injury to the right eye: mild hyp…

A 10-year-old has a BB gun injury to the right eye: mild hypotony, shallow anterior chamber, teardrop-shaped pupil, and a positive Seidel test. Visual acuity is counting fingers at 3 feet. Which is the single most important immediate management step?

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Why is muscle strength prioritized over muscle mass in moder…

Why is muscle strength prioritized over muscle mass in modern sarcopenia definitions?

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An 8-year-old on pressure control A/C (PIP 24, PEEP 6, RR 18…

An 8-year-old on pressure control A/C (PIP 24, PEEP 6, RR 18, FiO2 0.50) has ABG: pH 7.48, PaCO2 30, PaO2 98. The team wants to correct the hyperventilation without compromising oxygenation. Which adjustment is most appropriate?

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A 3-year-old on volume control A/C develops acute bronchospa…

A 3-year-old on volume control A/C develops acute bronchospasm. PIP rises from 22 to 38 cmH2O while VT is unchanged. Which statement best explains this rise in PIP?

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