PHYScalc: PF Ratio

P/F Ratio (PaO₂/FiO₂) – CC-OrangeCard PaO₂/FiO₂ (P/F) Ratio Calculator PaO₂ mmHg = 10.7 kPa PaO₂ (alt) kPa = 80 mmHg FiO₂ % = 0.40 P/F (mmHg) mmHg P/F (kPa) kPa Severity Normal oxygenation Normal: > 300 mmHg (> 40 kPa) Mild ARDS: 200–300 mmHg (26.7–40 kPa) Moderate ARDS: 100–200 mmHg (13.3–26.7 kPa) Severe ARDS: <= […]

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MEDcalc: Oxygen equivalence: High flow vs Low flow

Your patient is on High Flow oxygen via a gas blender (ie Airvo2). What wall-oxygen rate will deliver the same amount of oxygen to the patient? Oxygen Equivalence Calculator FiO₂: 21% High Flow Rate: 1 L/min Equivalent Wall Oxygen Flow Rate: 0.0 L/min Estimated maximum PEEP deliverable with closed-mouth: 1 L/min: 0.1 cmH2O Sharma S, […]

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