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Breathing Circuits and Vaporizers Breathing Circuits ... - KSS Deanery

Breathing Circuits and Vaporizers Breathing Circuits ... - KSS Deanery

Breathing Circuits and Vaporizers Breathing Circuits ... - KSS Deanery

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DRAW OVER VAPORISERS<br />

Gas is drawn into the vaporising chamber by patient’s<br />

inspired effort<br />

Low resistance<br />

Used within circuit<br />

– a circle absorber system<br />

– non-rebreathing draw-over apparatus<br />

Don’t require pressurised source of gases<br />

Useful for field hospitals<br />

– Battle fields <strong>and</strong> bush<br />

Poor accuracy of concentrations

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