A nurse is planning care for a patient who requires screening for rectal cancer. Which of the following tests should the nurse anticipate in the patient’s plan of care?

Choice A rationale A colonoscopy is the gold standard for screening for rectal cancer. During this procedure, a flexible scope is inserted into the rectum and advanced through the large intestine. The entire length of the colon can be visualized, and biopsies can be taken to detect cancerous or precancerous lesions, such as polyps, making it the most accurate test. Choice B rationale An upper gastrointestinal (GI) series involves the patient ingesting a barium solution and then having x-rays taken to visualize the esophagus, stomach, and duodenum. This test is used to diagnose conditions of the upper GI tract, such as ulcers or tumors, and is not designed to screen for rectal or colorectal cancer. Choice C rationale An upper GI endoscopy uses a flexible scope to visualize the esophagus, stomach, and duodenum. It is a diagnostic tool for upper GI tract issues like gastritis or hiatal hernias and cannot be used to visualize the rectum or colon, making it ineffective for rectal cancer screening. Choice D rationale Endoscopic retrograde cholangiopancreatography (ERCP) is a specialized procedure that combines endoscopy and fluoroscopy to visualize the bile and pancreatic ducts. It is used to diagnose and treat issues like gallstones or tumors in these specific ducts, not to screen for or visualize the rectum or colon.