<prompt> Which one is found in HSP?IgAIgMIgGIgE  <response>: Ans. a IgARef: Robbins 9thpg 926; 8thpg 934Most common antibody seen in these immune complexes is IgA Q IgA levels are elevatedThe microscopic hallmark of HSP is the deposition of IgA in the walls Q of involved blood vessels. 