Final answer:
The recommended screening exam for all patients 50 years and older is a colorectal cancer screening. Alternatives to colonoscopy include less invasive methods such as a stool-based test or a visual examination of the colon using a flexible sigmoidoscopy.
Step-by-step explanation:
For all patients who are 50 years of age or older, the recommended screening exam is a colorectal cancer screening. This can be done through a colonoscopy, which involves the examination of the colon using a flexible tube with a camera. Alternatives to colonoscopy include less invasive methods such as a stool-based test called fecal immunochemical test (FIT) or a visual examination of the colon using a flexible sigmoidoscopy.