The average salary is 24,000, but most people earn less. Most people have an above average number of feet. In his fourth lesson of a weekly series, author Michael Blastland cracks the myth of the average.ith incomes, to take another example, many people are aware that the average in the UK (also known as the mean) is about 24,000 a year (in fact, about 463 a week).
Unlike a colonoscopy, however, the 'range' of a sigmoidoscopy is not as good; whilst a colonoscopy can visualise the entire large bowel, a sigmoidoscopy can only visualise as far as the sigmoid colon (it is therefore primarily used to visualise the rectum and parts of the sigmoid colon).nlike a colonoscopy, however, the 'range' of a sigmoidoscopy is not as good; whilst a colonoscopy can visualise the entire large bowel, a sigmoidoscopy can only visualise as far as the sigmoid colon (it is therefore primarily used to visualise the rectum and parts of the sigmoid colon).
Colonoscopy checks your entire colon and rectum. Sigmoidoscopy checks the rectum and the lower colon only. Your doctor may recommend one of these procedures. To look for early signs of cancer in the colon and rectum. It may be part of a routine screening, which usually starts at age 50.