Substance utilized for barium meal follow through study: September 2011: (A) Barium carbonate, (B) Barium sulphate, (C) Barium oxide, (D) Barium hydroxide
Answer is B. Ans. B: Barium sulphate Since there is no natural contrast in the alimentary tract, its radiographic demonstration required the use of aificial contrast medium Barium sulphate, through which X-rays can not pass, is the contrast universally employed in performing alimentary tract studies