SCENARIO 1: A pаtient, Ms. Abbоtt, аrrives tо the rаdiоlogy department from the emergency room with severe upper abdominal pain. The ER resident, Dr. Knowitall, suspects that she has a kidney stone or gallstone and orders an CT of the abdomen to visualize the urinary and digestive systems prior to an Upper GI exam. You escort Ms. Abbott to the CT Department while you are waiting to begin her Upper GI exam. The CT examination will require the injection and ingestion of contrast media, so you assist the CT technologist and you take a detailed patient history and review the information submitted within the hospital’s health record system. Blood tests were ordered to assure that Mr. Abbott’s B.U.N. and creatinine levels are within the normal range prior to the injection of contrast. The normal creatinine level (diagnostic indication of kidney function) for an adult is: