Why are the blood lines and dialyzer primed before dialysis is initiated?

Priming the blood lines and dialyzer before initiating dialysis is essential for several reasons, primarily focusing on ensuring patient safety and the effectiveness of the dialysis treatment. The correct answer emphasizes the removal of air and the wetting of the fibers within the dialyzer.

When a dialyzer is dry, air can become trapped within its fibers, which can lead to air embolisms if not removed. Air in the system can also hinder the proper functioning of the dialyzer and affect the quality of the dialysis process. By priming the blood lines and dialyzer with saline or appropriate fluid, any trapped air is expelled, thus preventing potential complications.

Additionally, wetting the fibers helps to ensure that the dialysis membrane is properly prepped. This allows for optimal filtration of waste products and toxins from the blood, enhancing the efficiency of the dialysis process. Proper priming helps to ensure that the treatment operates smoothly from the start, leading to better patient outcomes.