Table 1: National Institute for Health Care and Excellence (NICE) referral guidelines for an urgent suspicion of colorectal cancer (NG12).

High Risk Referral Criteria (if any)

1 - Patients > 40 yrs with unexplained weight loss and abdominal pain

2 - Patients > 50 yrs with unexplained rectal bleeding

3 - Patients > 60 yrs with IDA or changes in bowel habit

4 - Patients show occult blood in their faeces**

**Offer occult blood testing if:

patients > 50 yrs with unexplained abdominal pain or weight loss

patients < 60 yrs with changes in bowel habits or IDA

Patients > 60 yrs with anaemia even in absence of iron deficiency

Consider High Risk Referral (if any)

5 - Patients with rectal or abdominal mass

6 - Patients < 50 yr with rectal bleeding and any of the following unexplained findings abdominal pain, change in bowel habits, weight loss or IDA

IDA = Iron deficiency anaemia.