What is one contraindication for performing hemodialysis?

Severe hypotension is a significant contraindication for performing hemodialysis because it indicates that a patient has critically low blood pressure, which can lead to inadequate perfusion of vital organs during the procedure. During hemodialysis, blood is drawn from the body, filtered, and then returned, all of which requires stable hemodynamics to ensure that the patient can tolerate the loss of fluid from the circulation. If a patient is already experiencing severe hypotension, initiating hemodialysis could exacerbate this condition, potentially leading to complications such as further cardiovascular instability or shock.

Understanding patient hemodynamics is crucial before initiating any dialysis treatment, as maintaining a stable blood pressure is vital for ensuring patient safety and the efficacy of the dialysis process.