Medical Dictionary

phentetiothalein

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noun phen·tet·io·tha·lein \ˌfen-ˌtet-ī-ō-ˈthal-ē-ən, -ˈthāl-\

Medical Definition of phentetiothalein

  1. :  a substance or its disodium salt C20H8I4Na2O4 isomeric with iodophthalein used especially formerly as a radiopaque medium in cholecystography and in tests of liver function—called also phenoltetraiodophthalein


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