Colorectal Cancer: Screening Flashcards
1
Q
How much does screening for colorectal cancer reduce mortality?
A
16%
2
Q
What do most colorectal cancers develop from?
A
Adenomatous polyps
3
Q
Describe the NHS national colorectal screening programme?
A
- Every 2 years all men and women aged 60 to 74 years old are sent FOB tests in the post.
- If abnormal they are offered colonoscopy
- Patients over 74 can request screening.
4
Q
At colonoscopy, how many patients will have a normal examination?
(Out of 10)
A
5 out of 10
5
Q
At colonoscopy, how many patients will be found to have polyps that can be removed due to premalignant potential?
(Out of 10)
A
4 out of 10
6
Q
At colonoscopy, how many will be found to have cancer?
(out of 10)
A
1 out of 10
7
Q
What number of patients decline colonscopy? (out of 10)
A
2.5 out of 10
8
Q
What is your percentage life time risk of developing colorectal cancer?
A
5%
