<prompt> Most common acute complication of dialysis isHypotensionBleedingDementiaMuscle cramps  <response>: Ans. is a i.e., Hypotension Hypotension is the most common acute complication of hemodialysis paicularly among patients with diabetes mellitus. Factors involved are :- Excessive ultrafiltration, with inadequate compensatory vascular filling, impaired vasoactive or autonomic response, osmolar shifts, overzealous use of antihypeensives 