免费在线氧合指数(OI)计算器，使用公式OI=(FiO₂×平均气道压)/PaO₂评估肺氧扩散能力。适用于新生儿及重症患者肺功能监测、ARDS分级诊断，提供精确的氧合指数计算。
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免费在线Aa梯度计算器，使用PAO2-PaO2公式评估血氧不足原因，区分肺内外病因如低通气或V/Q不匹配。支持年龄相关预期值计算，适用于医疗辅助诊断和肺功能评估。
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