Iodixanol – Cardiology MCQ

Iodixanol is a —- radiocontrast: a) Iso-osmolar b) Low osmolar c) High osmolar d) None of the above Correct answer: a) Iso-osmolar   The osmolality of iodixanol is about 290 milliOsmoles/Kg and it is a dimer. Low osmolar contrasts are non ionic monomers, with osmolality ranging from 700 – 850 mOsm/Kg e.g: Iohexol, Iopamidol. High-osmolar contrast agents with osmolality of 1200 mOsm/Kg or more are no longer used for cardiac catheterization. These were ionic contrasts of the yester years with a lot of associated problems.
Source: Cardiophile MD - Category: Cardiology Authors: Tags: Cardiology Cardiology MCQ DM / DNB Cardiology Entrance Source Type: blogs