Gas Transport — O2 and CO2 MCQ — NEET PG Practice Question | NEETPGAI
Gas Transport — O2 and CO2
medium
heart-pulse Physiology
A 38-year-old woman with suspected pulmonary embolism presents with acute dyspnea, chest pain, and tachycardia. Initial ABG shows pH 7.48, PaCO₂ 28 mmHg, HCO₃⁻ 21 mEq/L, and PaO₂ 68 mmHg. Which investigation is most specific for confirming the diagnosis and assessing the degree of ventilation-perfusion mismatch?
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