What position should the dialyzer be in during HD (Arterial)?

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Multiple Choice

What position should the dialyzer be in during HD (Arterial)?

Explanation:
Position the dialyzer with the arterial end up. Gravity helps any air bubbles and residual priming fluid rise to the top where the machine can detect and remove them, reducing the risk of air entering the patient’s arterial circuit. This orientation also promotes clean priming and drainage from the arterial side toward the venous outlet, ensuring the dialyzer is fully primed before use. If the dialyzer were horizontal or with the venous end up, air pockets are more likely to form and stay inside the housing, increasing the risk of air embolism and complicating priming.

Position the dialyzer with the arterial end up. Gravity helps any air bubbles and residual priming fluid rise to the top where the machine can detect and remove them, reducing the risk of air entering the patient’s arterial circuit. This orientation also promotes clean priming and drainage from the arterial side toward the venous outlet, ensuring the dialyzer is fully primed before use. If the dialyzer were horizontal or with the venous end up, air pockets are more likely to form and stay inside the housing, increasing the risk of air embolism and complicating priming.

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