<prompt> An insufficient amount of AV cushion material will result in which of the following?Persistent truncus aeriosus PTAEbsteins anomalyTransposition of the great aeriesTricuspid atresia  <response>: Insufficient amount of AV cushion material will cause tricuspid atresia. Improper spiraling of conotruncalspiral septum lead to TGA. Anterior migration of spiral septum lead to TOF. Ebsteinss anamoly-Teratogenic effect of lithium causing atrialization of R.V due to apical displacement of septal and posterior leaflet of tricusid valve A faulty fusion of the right and left bulbar ridges and AV cushion causes membranous VSD. 