<prompt> Glanzmann thrombasthenia is due toDecreased GpIbDecreased GpIIbIIaAnti-GpIIbIIIa antibodiesInhibition or deficiency of ADAMTS 13  <response>: Glanzmann thrombasthenia is an autosomal recessive disorder. There is a failure of primary platelet aggregation with ADP or collagen due to inherited deficiency of two platelets membrane glycoproteins. It is caused due to deficiency of glycoprotein IIb- IIa. 