What is the immediate intervention for a patient experiencing an anaphylactic reaction during dialysis?

In the event of an anaphylactic reaction during dialysis, the most critical immediate intervention is to stop the blood pump, discontinue treatment, and refrain from returning any blood to the patient. This response is vital because anaphylaxis can lead to rapidly worsening symptoms, including severe respiratory distress and cardiovascular collapse. By stopping the blood pump, the healthcare provider prevents further exposure to the allergen that triggered the reaction, ensuring that the patient does not continue to receive substances that could exacerbate their condition.

Discontinuing treatment is essential to safeguard the patient’s health and initiate appropriate medical responses. Returning the blood can reintroduce the allergen into the patient's circulation, increasing the risk of severe complications. After this initial action, calling for help and monitoring vital signs become important, as they can provide the necessary support and medical intervention required to manage the anaphylactic reaction effectively.

While reassurance and provision of oxygen are supportive measures, they do not address the immediate risk posed by an ongoing anaphylactic reaction, highlighting the critical need to first stabilize the situation through stopping the dialysis treatment.