Medical MCQ - True about OCG is – a) First done by Graham Cole in 1942b) Dye ingested at rate of 1 ml/kgc) USG has replaced itd) Dye used is telepaque

True about OCG is – a) First done by Graham Cole in 1942b) Dye ingested at rate of 1 ml/kgc) USG has replaced itd) Dye used is telepaque

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OCG was introduced by Graham and Cole in 1924 (not in 1942). Two doses of 3 gm of dye is given --> first dose 14 hours, and second dose 3-4 hours prior to post-contrast examination. OCG has largely been replaced by USG Dye most commonly used is Na/Ca Ipanoic acid (Telepaque).

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