Colonoscopy and Colorectal Cancer Screening and Prevention

Question 1

Colorectal cancer is the third leading cause of cancer in women after

Answer 1

1. lung cancer

2. breast cancer

Question 2

most colorectal cancer can be detected by screening modalities and treated at a preinvasive or early invasive stage, before it has developed to a fully invasive and potentially fatal disease.

Answer 2

true

Question 3

screening for colorectal cancer is indicated for all women aged 50 yrs or older who are at average risk.

Answer 3

true

Question 4

digital rectal examination and in office stool sample collection are

Answer 4

not recommended screening methods for the detection of colorectal cancer.

Question 5

preferred method

Answer 5

colonoscopy every 10 years starting age 50.

Question 6

other appropriate methods for screening for colorectal cancer:

Answer 6

1. fecal occult blood testing every year
2. flexible sigmoidoscopy every 5 years
3. fecal occult blood testing or fecal immunochemical testing every year plus flexible sigmoidoscopy every 5 years.
4. double contrast barium enema every 5 years.

Question 7

fecal occult blood testing and fecal immunochemical testing require

Answer 7

2 - 3 samples of stool collected by the patient at home and returned for analysis. a single stool sample or obtained by digital rectal exam is not adequate for detection of colorectal cancer.

Question 8

sensitivity of a single stool sample for fecal occult blood testing obtained during an office visit by digital rectal examination was

Answer 8

4.9%. therefore, fecal occult blood testing of a single stool sample for a rectal examination performed during an office visit is not adequate for the detection of colorectal cancer and is not recommended.