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Arterial Blood Gases - Surgery

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Tidal Volume & Frequency<br />

Control minute ventilation & PaCO2 PaCO<br />

VE = f x VT V<br />

PaCO2 PaCO = VCO2/V VCO /VA<br />

VA = VT V – Vds<br />

Postop – 8-12 12 mL/kg<br />

Restrictive – 4-8 8 mL/kg<br />

Obstructive – 8-10 10 mL/kg

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