In what position should the dialyzer be placed during hemodialysis?

During hemodialysis, it is crucial that the dialyzer is positioned properly to ensure optimal blood flow and effective clearing of waste products. The correct positioning is with the arterial end up. This allows for the smooth entry of blood into the dialyzer, facilitating the proper filtration process.

By placing the arterial end up, the circulation of blood through the dialyzer is maintained effectively, minimizing the risk of air bubbles and ensuring that any air trapped in the dialyzer can escape, preventing complications that could arise from air in the system. This positioning also helps to ensure that the blood is adequately exposed to the dialysate, maximizing the efficiency of the dialysis treatment.

In contrast, placing the dialyzer in any other position, such as horizontal or with the venous end up, could disrupt the flow of blood and compromise the treatment, leading to ineffective dialysis and potential harm to the patient.