Pedirex

PICU MCQ’s

Respiratory Physiology Set 1

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Q:1 A 4-year-old with severe pneumonia is intubated. Despite FiO₂ 1.0 and adequate ventilation (PaCO₂ 40 mmHg), PaO₂ remains 55 mmHg. Chest X-ray shows bilateral consolidation. What is the primary mechanism of hypoxemia? A. Alveolar hypoventilationB. Diffusion limitationC. Intrapulmonary shuntD. Increased dead spaceE. Low inspired oxygen fraction Answer: CExplanation:Refractory hypoxemia despite high FiO₂ indicates shunt … Read more

Hemodynamic & Advanced Monitoring MCQ’S Set 1

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Q:1 An 8-year-old with septic shock is intubated and receiving norepinephrine. ScvO₂ is 82%, lactate is 5 mmol/L, and capillary refill is delayed. Echocardiography shows preserved systolic function. What is the most likely explanation for the elevated ScvO₂? A. Excess oxygen delivery relative to demandB. Impaired tissue oxygen extractionC. Severe anemiaD. High cardiac output with … Read more