Category: Or-Os

Abbreviated OCG. An x-ray procedure for diagnosing gallstones. The patient takes iodine-containing tablets by mouth for one night or two nights in a row. The iodine is absorbed from the intestine into the bloodstream, removed from the blood by the liver, and excreted by the liver into the bile. The iodine, together with the bile, is highly concentrated in the gallbladder. Iodine…

Having to do with the mouth. For example, an oral solution is a solution that is given by mouth.

Stands for “operating room”. A facility equipped for performing surgery. OR is sometimes written O.R.