These are chemical materials usually applied to a subject to enable a medical expert to have a clear picture of the investigating organ or tissues that the imaging techniques is focused on. It enables the experts to distinguished normal organs from abnormal ones, and also the targeted organs from surrounding tissues.
The I.V route usually cause metallic taste in the mouth the flushing and warmth experienced..Iodine or Gadolinium based contrast material are usually applied through I.V, and they may cause the metallic tastes in the mouth during the metabolism as they are carried to the lungs,
