A nurse is reinforcing teaching to a patient about how to perform fecal occult blood testing for colorectal cancer screening.

 Which statement by the patient indicates a need for further teaching? 

Choice A rationale
While some MRI scans may require fasting, it is not universally required for all MRI scans. The need for fasting depends on the specific type of scan and the contrast material used.
Choice B rationale
Endoscopic retrograde cholangiopancreatography (ERCP) is a procedure that combines upper gastrointestinal (GI) endoscopy and x-rays to treat problems of the bile and pancreatic ducts. It often requires fasting before the procedure.

Choice C rationale
Esophagogastroduodenoscopy (EGD) is a procedure that examines the lining of the esophagus, stomach, and upper duodenum with a small camera (endoscope) which is inserted down the throat. It requires fasting before the procedure.
Choice D rationale
A barium swallow is a type of test used to look at the esophagus, the tube that connects the mouth to the stomach. It requires fasting before the procedure.

Choice A rationale
Famotidine is a histamine-2 blocker used to decrease the amount of acid the stomach produces. It is not typically associated with liver disease.
Choice B rationale
Levothyroxine is a thyroid hormone used to treat hypothyroidism. It is not typically associated with liver disease.
Choice C rationale
Furosemide is a diuretic used to treat fluid retention (edema) in people with congestive heart failure, liver disease, or a kidney disorder such as nephrotic syndrome. It is not typically associated with liver disease.
Choice D rationale
Acetaminophen is a common over-the-counter medication used to relieve pain and reduce fever. However, high doses or long-term use of acetaminophen can cause liver damage.